Error HTTP 500

[DominikPL]

Hi, i take care of my client's prestashop. Today I got a call that it is impossible to login to the prestashop admin panel because the page displays error 500. After starting debugging, the following information is displayed:

Quote

ContextErrorException in classes.php line 93:Warning: session_cache_limiter(): Cannot change cache limiter when headers already sent

in classes.php line 93

at ErrorHandler->handleError('2', 'session_cache_limiter(): Cannot change cache limiter when headers already sent', '/www/complex-partner.sklep.pl/app/cache/dev/classes.php', '93', array('options' => array('cookie_httponly' => true, 'gc_probability' => '1'), 'handler' => null, 'metaBag' => object(MetadataBag)))

at session_cache_limiter('') in classes.php line 93

at NativeSessionStorage->__construct(array('cookie_httponly' => true, 'gc_probability' => '1'), null, object(MetadataBag)) in appDevDebugProjectContainer.php line 3892

at appDevDebugProjectContainer->getSession_Storage_NativeService() in bootstrap.php.cache line 2248

at Container->get('session.storage.native') in appDevDebugProjectContainer.php line 3862

at appDevDebugProjectContainer->getSessionService() in bootstrap.php.cache line 2248

at Container->get('session') in appDevDebugProjectContainer.php line 3601

at appDevDebugProjectContainer->getSecurity_Csrf_TokenManagerService() in bootstrap.php.cache line 2248

at Container->get('security.csrf.token_manager') in appDevDebugProjectContainer.php line 2965

at appDevDebugProjectContainer->getPrestashop_RouterService() in bootstrap.php.cache line 2248

at Container->get('prestashop.router', '2') in appDevDebugProjectContainer.php line 1810

at appDevDebugProjectContainer->getLocaleListenerService() in bootstrap.php.cache line 2248

at Container->get('locale_listener') in classes.php line 1970

at ContainerAwareEventDispatcher->lazyLoad('kernel.finish_request') in classes.php line 1938

at ContainerAwareEventDispatcher->getListeners('kernel.finish_request') in TraceableEventDispatcher.php line 245

at TraceableEventDispatcher->preProcess('kernel.finish_request') in TraceableEventDispatcher.php line 135

at TraceableEventDispatcher->dispatch('kernel.finish_request', object(FinishRequestEvent)) in bootstrap.php.cache line 3272

at HttpKernel->finishRequest(object(Request), '1') in bootstrap.php.cache line 3211

at HttpKernel->handle(object(Request), '1', false) in bootstrap.php.cache line 3359

at ContainerAwareHttpKernel->handle(object(Request), '1', false) in bootstrap.php.cache line 2562

at Kernel->handle(object(Request), '1', false) in index.php line 86

I would like to add that I have not updated prestashop recently and changed; session.save_path = / tmp and unfortunately it did not help. I also include a link to the website so that you can see what the problem looks like.

http://complex-partner.sklep.pl/admin841ldpdo/

http://complex-partner.sklep.pl/admin841ldpdo/

Thank you in advance for your help

 

 

[ComGrafPL]

On 8/25/2021 at 4:02 PM, DominikPL said:

Hi, i take care of my client's prestashop. Today I got a call that it is impossible to login to the prestashop admin panel because the page displays error 500. After starting debugging, the following information is displayed:

I would like to add that I have not updated prestashop recently and changed; session.save_path = / tmp and unfortunately it did not help. I also include a link to the website so that you can see what the problem looks like.

http://complex-partner.sklep.pl/admin841ldpdo/

http://complex-partner.sklep.pl/admin841ldpdo/

Thank you in advance for your help

 

 

Try emptying the whole /app/cache/ folder and see if it helps. Set files / folders permissions to 644/775.

[Zaria Skiles]

Which PHP version are you using ?

[Shabab]

Enable debug mode and send screenshot of error?