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Fatal error: Uncaught TypeError: LeoPartsFilter::hookFilterProductSearch(): Return value must be of type string, null returned in /var/www/prestashop/mxlife1/modules/leopartsfilter/leopartsfilter.php:1112 Stack trace: #0 /var/www/prestashop/mxlife1/classes/Hook.php(1077): LeoPartsFilter->hookFilterProductSearch() #1 /var/www/prestashop/mxlife1/classes/Hook.php(418): HookCore::coreCallHook() #2 /var/www/prestashop/mxlife1/classes/Hook.php(983): HookCore::callHookOn() #3 /var/www/prestashop/mxlife1/classes/controller/ProductListingFrontController.php(444): HookCore::exec() #4 /var/www/prestashop/mxlife1/classes/controller/ProductListingFrontController.php(635): ProductListingFrontControllerCore->getProductSearchVariables() #5 /var/www/prestashop/mxlife1/controllers/front/listing/ManufacturerController.php(99): ProductListingFrontControllerCore->doProductSearch() #6 /var/www/prestashop/mxlife1/classes/controller/Controller.php(319): ManufacturerControllerCore->initContent() #7 /var/www/prestashop/mxlife1/classes/Dispatcher.php(510): ControllerCore->run() #8 /var/www/prestashop/mxlife1/index.php(28): DispatcherCore->dispatch() #9 {main} thrown in /var/www/prestashop/mxlife1/modules/leopartsfilter/leopartsfilter.php on line 1112