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82 Responses

  1. saurabh says:

    module notworking properly

  2. Tracy says:

    Lightning server communication error.

  3. Ehab says:

    Dear MaxD ,

    At first I would like to thank you for your greet efforts in the new version of lightening script .

    Now I would like to let you know 2 things I met with this version .

    1 – When I try to checkout , I redirected to the checkout page which shows nothing at all only white page

    2 – when I return back to the main page of the store I found that all items in my basket have been deleted

    I hope you may find a solution very soon .

    Regards ,

    Dr. Ehab Hilmy

  4. Ehab says:

    Hi ,
    I noticed new bug .
    I am using Jurnal2
    t-on mobile phone , some of the main menu items disappear in 2 main categories but the full menu appears at all other pages without any problem .

    What should we do to fix that ?
    Regards ,

    Dr. Ehab

    • Ehab says:

      sorry the top menu not the main menu

      • Ehab says:

        This issue has been resolved after I checked ” Distinct gadgets – mobiles, tablets and PC ” in the settings file .

        still testing and I’ll report any bugs that I may face.

  5. Romas says:

    Hello, im using lightning tool, but i have one problem, when you put something in the cart and go to other pages, sometimes your cart shows as no products, when I reload the page the items are in the cart. Can you help ?

  6. Ehab says:

    New bug ,
    Hi MaxD ,
    I noticed something that I would like to report here , sometimes when I enter the store home page , I notice that the ” wish list ” shows that there are 1012 items ” whish list (1012) ”
    this resume till I clear the cache from the back end.
    I hope you may fix that .

    Dr. Ehab

  7. Hi i have uploaded version for OC 3 but widget is no appear.
    Frontend show Fatal error: Maximum execution time of 5 seconds exceeded in /home/virtra6/public_html/vqmod/vqmod.php on line 116
    I will delete till you fix issue i have tried on live site

  8. Ehab says:

    Hello MaxD ,
    There is something I want to report .
    When I test the page speed on google
    I found it is 96/100 on mobile phones while on Desktop it is 59/100
    May you try to optimize more on Desktop


  9. Ehab says:

    Hi MaxD ,
    I want to report new notice ,
    The new version of the scrip ” ”
    Categories load time is ok but when I select any product I notice there is a delay till the product page is loaded
    This issue was not noticed in the previous version .



  10. Martin says:

    I’m on Opencart and latest Journal 2 theme, configured according to documentation.
    I’m currenty testing your module which already seems to make a huge difference in loading times.

    1) Problem: On product pages the Journal 2 Side Category often does not show up since module is running.
    2) Question: What’s the best Opencart configuration according to Gzip compression in combination with Lightning.

  11. robert says:

    im using journal 2 opencart work brillanly accept when i use this module product reviews pro it doesnt show up on the review section on the product pages but if you turn off lighting it work fine

  12. Ali Aziz says:

    On OC how can I hide the widget from showing from top for everyone else – all my admin staff can see it and some are clearing caches when they make a change – which I dont want them to do – please advise.


  13. Paul Eagles says:

    Hi, I use Google Tag Manager and would like Lightning to skip this so it stays in the Header – as it is not currently firing. Could you please tell me how I can configure Lightning to do this.

  14. C Toumi says:

    Hi Im using cpanel on shared hosting at the moment ,
    I have received the following error
    “PHP is much faster with PHP acceleration. Ask your hoster to enable it.

    The best solution for your server is OPCache acceleration.”

    I have asked the hosting support team to enable the PHP acceleration and they asked me the following quation:

    Thank you for reaching us on the matter and apologize for the late response,

    Could you be more specific on what do you refer by PHP acceleration, because there are a number of PHP a like accelerators:

    Also after and if this extension is enabled it needs to be configured.

    Could advise as well is optipng utility a plugin or extension for OpenCart? If that is the case you can install it from the dashboard of the OpenCart.
    Could you please

    • MaxD MaxD says:

      APC and XCache will go, but Lightning recommends OPCache for your server. Ask you hoster, if OPCache is available.

      With Lightning 3 you don’t need to install image optimization utilities, have you tried it?

  15. Naman Jain says:

    Google test score is still poor

  16. Anonymous says:


    your tool says:
    Congratulations! You have image optimization utilities installed and running.

    However, you can get better performance with image optimization CRON Task. If you have tried to configure it and failed, ignore this notice.

    Create CRON (sheduler) task in your hoster’s control panel to run every 15 minutes.

    this task crashes, however we have:


    what else should we do?

    Also in backend settings should we set a number on gzip compression? Now it is set = 0

    • MaxD MaxD says:

      You can go with utils without CRON job, it is good enough. However, I’m interested to know why and how task crashes, please send any details you have to
      Lightning automatically maintains optimal GZIP compression level, backend setting doesn’t have any effect.

  17. Bjorn Heg says:

    Goodmorning, i am using lightning in opencart and am very happy with the results. However since a few days the module is disabled and i cannot enable it anymore.

    OpenCart Lightning v. 2.30

    Lightning disabled:
    Lightning server communication error

  18. Rafael says:

    How to buy the complete version and the price ?

  19. Anonymous says:


    whats the syntax for

    Do not use JS optimization for this routes <<<- field?

    • MaxD MaxD says:

      It is space-separated list, each entry is checked as substring against route. For example:
      checkout/ common/cart
      Will match all checkout routes (checkout/checkout and so on) and common/cart.

  20. Hello! I have a serious problem … I was uninstalled version 2 of lightning to install the new version and get better results, however, since I uninstalled, I started to receive errors in my store. When I type only the address of my site I get error: Fatal error: Can not redeclare Wt () (previously declared in /home/vif7vqdxxc5a/public_html/system/lightning/gamma.php:1) in / home / vif7vqdxxc5a / public_html / catalog /controller/extension/lightning/gamma.php on line 1

    How much I try to enter the admin, it appears to me:
    Fatal error: Can not redeclare Loader :: view () in /home/vif7vqdxxc5a/public_html/vqmod/vqcache/vq2-system_storage_modification_system_engine_loader.php on line 82

    I’m with the store off the air …. I’m losing sales. If you can help me.


  21. I managed to solve the admin problem by excluding the ‘modifcation’ folder in the system. However, my site still does not enter, when I type the address it appears: Fatal error: Can not redeclare Wt () (previously declared in /home/vif7vqdxxc5a/public_html/system/lightning/gamma.php:1) in / home / vif7vqdxxc5a / public_html /catalog/controller/extension/lightning/gamma.php on line 1

    Please, I really need your help. I have already installed lightning 3.0.3. I already gave a refresh in the modifications. But it does not work anyway. 🙂

  22. Naman Jain says:

    Opencart Marketing Tracking not working with Lightning. I have checked it by disabling lightning also.

  23. Kim T says:

    Google analytics not working since lightning 3XX, no problem when lightning is disabled. js and css disabled still the same.

    • Kim T says:

      Problem solved after Max contacted me. If anyone else have the same problem the solution for me was to use the option “Disable products links unification”

  24. Opencart, Journal 2.16.2, PHP 5.4.16 (I have problems with mycrypt to go up in php). Plesk Panel.

    I have tested 3.0.3 but i have problems with the images optim, and the pregeneration.

    I have higher scores with the older version. Its very fast, diference under pagespeed on movile its equal but the desktop version goes from 94 to 70.

    I will wait until changes or revisions. Thank you so much Max.

  25. Ali Aziz says:

    Getting low google page speed scores – Could you check?

  26. Before Upgrade to version 3.0.3 JS Optimization Blocking for certain routes and scripts was working fine. But now it’s not.
    I want to block JS optimization for but it’s no longer working. Please if there is any other setting do help me know.

  27. Manu says:

    I am getting “Lightning: Could not load database driver type mysqli!” error message when I try to use SEO module within admin panel to generate SEO titles and other information. Please help!

  28. Paun Marius says:

    Hello max,

    I get this error to one domain and I cant enable it”Lightning disabled:
    Real domain required “

  29. Piao Qiu says:

    PHP Warning: file_put_contents(/ failed to open stream: Is a directory in / on line 1
    PHP Warning: file_put_contents(/ failed to open stream: Is a directory in / on line 1

    After I Configured Lightning CRON Task, it show these problems, how to fix them?

  30. C Toumi says:

    We have saphire protection extension from dreamvention and it seems it has a conflict with lightning
    could you plz help us to resolve this issue

  31. Anonymous says:

    OK, Thank you very much for your prompt reply.
    at the moment we doing some work once finished i will give you access.

  32. FredB says:

    Hi Max,

    First of all Lightning does wonders for our Opencart shop, thanks for making it possibile to try it first.
    Is it possible to edit the dutch cookie policy text?
    Would like to add some extra info and make some textcorrections.

  33. CToumi says:

    we purchased a licence from you we are using it on
    We would really appreciate it if you could allow us to use the same licence on is a clone of for testing purposes. the last time we asked you if you could help us to make lightning work with dreamvention Saphire protection unfortuatly the website was colpetly messed up we had to go through restores.

    would you be able please allow us to use lightning for testing on

    • MaxD MaxD says:

      Unfortunately, that requires separate license.
      You can use subdomain for testing with your license or I can give a month of trial period for

  34. Maurice says:

    Installed lightning, but when i enable it, the site does not work anymore. Please can someone help me and to see what is the problem? i really need to use a caching extension because of lack of speed.

  35. cezar says:

    Hello, I use you extension, but I have a little problem.

    In category with many pages, when I want to go to page 10 they jump to page 1. If I want to jump to page 20 they jump at page 1.

    With lightning disabled everything works fine.

    Thank you!

  36. Apostolos says:

    PHP Parse error: syntax error, unexpected ‘H’ (T_STRING) in /var/www/vhosts/xxxxxxx/httpdocs/catalog/controller/extension/lightning/lio on line 110

  37. Apostolos says:

    PHP Parse error: syntax error, unexpected ‘H’ (T_STRING) in /var/www/vhosts/xxxxxxx/httpdocs/catalog/controller/extension/lightning/lio on line 110

  38. Hi, I tried lighning with TechOne template and Mega Filter Pro. When Lightning is enabled, after using Mega Filter, (AJAX) no result appear at all. I tried to troubleshoot by disabling Database query and AJAX caching, the delete cache. It did not solve the problem. When Lightning is enabled, Filter gives no results. Can you help me with this?

    • MaxD MaxD says:

      I have checked your site, when Lightning JS Optimization is disabled, Mega Filter works properly.
      Might be something wrong with Mega Filter JS.

  39. Hi, firstly plugin is works fine. But 2-3 days later my sec latency very very much high. What is the problem. I reinstall plugin, but nothing any change. I want uninstall this plugin and I want to restore it to its former state. Because my site is very slow now. Please help me.

  40. cezar says:

    Hello, can you help me?

  41. I’ve just updated Lightning from v. 2.2.8 to v. 3.0.2 and then to v. 3.0.5
    Lightning is now reporting Fatal PHP Errors Detected … Module ‘mysqli’ already loaded in Unknown. I clear these errors and they return.

  42. Joseph says:

    After installing the extension I got the error

    PHP Warning: require_once(/home/*****/public_html/system/library/db/mPDO.php): failed to open stream: No such file or directory in /home/*****/public_html/catalog/controller/extension/lightning/beta.php on line 1

  43. We bought the plugin for the website and it worked fine; but several days later, the final customer reported us that the checkout page was failing, nothing was shown but the header and the footer. The developers tools of the browser reported and error in a file created by this plugin. When we checked it, it was so compressed that the code was failing. Now the plugin is deactivated and the checkout page is working as always did. How can we make the plugin active but skip such issues? Feel free to contact me for more details

  44. Alex says:

    in journal 2 theme the Recently viewed module Type as you said its not working, i try the latest viewed and it does the same as the previus. Can you tell me one that works

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