Error 500 - ClassNotFoundException autoload.php (AppKernel.php)

[itcfig]

Hello Everyone, 

Hopefully someone can help me debug my store.

I woke up today and my website was on "error 500".

I havent done any changes on any files/coding on my website for months. Im using Prestashop 1.7.6 (if I remember well - I cant access the backoffice anymore because of this error)

Turned on debug/dev mode and this error was displayed:

(1/1) ClassNotFoundException
Attempted to load class "ComposerAutoloaderInit39aacd3d3a6d9c91a7fb10507b85be3a" from the global namespace.
Did you forget a "use" statement?

in autoload.php line 7
at include_once()
in AppKernel.php line 172
at AppKernel->enableComposerAutoloaderOnModules(array('contactform', 'dashactivity', 'dashtrends', 'dashproducts', 'graphnvd3', 'gridhtml', 'ps_categorytree', 'ps_contactinfo', 'ps_customeraccountlinks', 'ps_customersignin', 'ps_emailsubscription', 'ps_faviconnotificationbo', 'ps_featuredproducts', 'ps_linklist', 'ps_mainmenu', 'ps_searchbar', 'ps_sharebuttons', 'ps_themecusto', 'ps_wirepayment', 'pagesnotfound', 'sekeywords', 'statsbestcustomers', 'statsbestproducts', 'statscatalog', 'statsdata', 'statsequipment', 'statsforecast', 'statslive', 'statsnewsletter', 'statsorigin', 'statspersonalinfos', 'statsproduct', 'statsregistrations', 'statssales', 'statssearch', 'statsvisits', 'ps_buybuttonlite', 'blockreassurance', 'ps_facetedsearch', 'appagebuilder', 'ps_categoryproducts', 'leoslideshow', 'aftership', 'bridgeconnector', 'autoupgrade', 'prestafraud', 'ps_reminder', 'psgdpr', 'fbpixel', 'uecookie', 'phfbchat', 'a_deposito', 'ps_emailalerts', 'pixelfeed', 'ps_shoppingcart', 'leofeature', 'googletag', 'ps_socialfollow', 'mercadolivreps', 'smartblog', 'gshoppingflux', 'gsitemap', 'agcliente', 'seoredirect', 'agpaymentsimulator', 'mailchimppro', 'stoptimage', 'likebox', 'htmlbox', 'kbmobileapp', 'paypal', 'webpgenerator', 'stopclic', 'custompopup', 'stattributelist', 'ps_currencyselector', 'ps_languageselector', 'novpagemanage', 'novtestimonials', 'novblocktags', 'novblockwishlist', 'novmegamenu', 'novverticalmenu', 'novnivoslider', 'novproductcomments', 'novlistshowmore', 'novthemeconfig', 'smartbloghomelatestnews', 'smartblogrecentposts', 'smartblogrelatedposts', 'ps_imageslider', 'ps_banner', 'ps_customtext', 'leoblog', 'blockgrouptop', 'leoquicklogin', 'lgcomments', 'leobootstrapmenu', 'pla', 'mercadopagopro5', 'notarobot', 'lgimagesregenerator', 'g_aliexpress', 'sizeconversion', 'eicaptcha', 'colorpicker', 'tetnotification', 'whatsappchat', 'purls', 'cmgoogleconversion', 'cmgoogleremarketing'))
in AppKernel.php line 76
at AppKernel->registerBundles()
in Kernel.php line 488
at Kernel->initializeBundles()
in Kernel.php line 132
at Kernel->boot()
in Kernel.php line 195
at Kernel->handle(object(Request), 1, false)
in index.php line 86

Does anyone have any ideia how to fix it? Thanks a lot.

[itcfig]

So, the problem was cause by the "autoupgrade" module. Deleting that folder from the /modules folder resolved the issue.

[mtuteleers]

Hi I have the same problems but I cant find the "autoupgrade" module. Can you help me?. I look for in Module Folder, but I dont have a autoupgrade module.

Thanks a lot for your help.

[mtuteleers]

[Mehrshad Zakerian]

It is definitely from one of your modules. You need to rename each module to see which one is causing this issue. In my case it was "psxmarketingwithgoogle" module. I renamed it to "psxmarketingwithgoogle2" and it solved the error.

[tarekoxygene]

I think it's a PHP version issue