I'm using Prestashop 1.7.4.3 and PHP version is 7.1 I haven't done anything to the site in the backend but 500 errors just started in. I'm pasting the results of debugging because I couldn't upload a 200kb screenshot. The site is collectibleartwear.com
(1/1) ContextErrorException
Warning: Declaration of BWDisplay::setTemplate($template) should be compatible with FrontControllerCore::setTemplate($template, $params = Array, $locale = NULL)
in Display.php line 49
at ErrorHandler->handleError(2, 'Declaration of BWDisplay::setTemplate($template) should be compatible with FrontControllerCore::setTemplate($template, $params = Array, $locale = NULL)', '/home/collect/public_html/modules/lgtagmanager/backward_compatibility/Display.php', 49, array())in backward.php line 39
at require_once()in backward.php line 39
at require('/home/collect/public_html/modules/lgtagmanager/backward_compatibility/backward.php')in lgtagmanager.php line 41
at LGTagManager->__construct()
at ReflectionClass->newInstance()in Container.php line 127
at Container->makeInstanceFromClassName('lgtagmanager', array('lgtagmanager' => true))in Container.php line 160
at Container->doMake('lgtagmanager', array('lgtagmanager' => true))in Container.php line 173
at Container->make('lgtagmanager')in ServiceLocator.php line 60
at ServiceLocator::get('lgtagmanager')in Module.php line 1091
at ModuleCore::coreLoadModule('lgtagmanager')in Module.php line 1071
at ModuleCore::getInstanceByName('lgtagmanager')in Hook.php line 837
at HookCore::exec('displayHeader')in FrontController.php line 552
at FrontControllerCore->initContent()in IndexController.php line 37
at IndexControllerCore->initContent()in Controller.php line 255
at ControllerCore->run()in Dispatcher.php line 428
at DispatcherCore->dispatch()in index.php line 28