Error 500 al actualizar.

[FranP11]

Tengo versión prestashop 1.7.8.6 y al actualizar a 1.7.8.8 me salen varios errores en rojo y la pagina al refrescar da error 500, tengo que restaurar copia de seguridad para que vuelva a funcionar.

A ver si pudierais echarme una mano.

La ventana de los errores en el modulo 1click upgrade da estas líneas:

[INTERNAL] /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/Loader.php line 73 - Symfony\Component\Config\Exception\FileLoaderLoadException: Cannot load resource "/homepages/12/d299992458/htdocs/Tienda/src/PrestaShopBundle/Resources/config/services/bundle/form/form_type/php.ini". #0 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(133): Symfony\Component\Config\Loader\Loader->resolve('/homepages/12/d...', NULL) #1 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(79): Symfony\Component\Config\Loader\FileLoader->doImport('/homepages/12/d...', NULL, false, '/homepages/12/d...') #2 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(195): Symfony\Component\Config\Loader\FileLoader->import('form_type/*', NULL, false, '/homepages/12/d...') #3 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(127): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->parseImports(Array, '/homepages/12/d...') #4 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(153): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->load('/homepages/12/d...', NULL) #5 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(79): Symfony\Component\Config\Loader\FileLoader->doImport('/homepages/12/d...', NULL, false, '/homepages/12/d...') #6 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(195): Symfony\Component\Config\Loader\FileLoader->import('form/*.yml', NULL, false, '/homepages/12/d...') #7 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(127): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->parseImports(Array, '/homepages/12/d...') #8 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(153): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->load('/homepages/12/d...', NULL) #9 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php(79): Symfony\Component\Config\Loader\FileLoader->doImport('/homepages/12/d...', NULL, false, '/homepages/12/d...') #10 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(195): Symfony\Component\Config\Loader\FileLoader->import('services/bundle...', NULL, false, '/homepages/12/d...') #11 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php(127): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->parseImports(Array, '/homepages/12/d...') #12 /homepages/12/d299992458/htdocs/Tienda/src/PrestaShopBundle/DependencyInjection/PrestaShopExtension.php(48): Symfony\Component\DependencyInjection\Loader\YamlFileLoader->load('services.yml') #13 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/MergeExtensionConfigurationPass.php(71): PrestaShopBundle\DependencyInjection\PrestaShopExtension->load(Array, Object(Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationContainerBuilder)) #14 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/DependencyInjection/MergeExtensionConfigurationPass.php(39): Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass->process(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #15 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/Compiler.php(140): Symfony\Component\HttpKernel\DependencyInjection\MergeExtensionConfigurationPass->process(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #16 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php(789): Symfony\Component\DependencyInjection\Compiler\Compiler->compile(Object(Symfony\Component\DependencyInjection\ContainerBuilder)) #17 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php(643): Symfony\Component\DependencyInjection\ContainerBuilder->compile() #18 /homepages/12/d299992458/htdocs/Tienda/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php(135): Symfony\Component\HttpKernel\Kernel->initializeContainer() #19 /homepages/12/d299992458/htdocs/Tienda/modules/autoupgrade/classes/UpgradeTools/SymfonyAdapter.php(76): Symfony\Component\HttpKernel\Kernel->boot() #20 /homepages/12/d299992458/htdocs/Tienda/modules/autoupgrade/classes/UpgradeTools/CoreUpgrader/CoreUpgrader17.php(56): PrestaShop\Module\AutoUpgrade\UpgradeTools\SymfonyAdapter->initAppKernel() #21 /homepages/12/d299992458/htdocs/Tienda/modules/autoupgrade/classes/UpgradeTools/CoreUpgrader/CoreUpgrader.php(87): PrestaShop\Module\AutoUpgrade\UpgradeTools\CoreUpgrader\CoreUpgrader17->initConstants() #22 /homepages/12/d299992458/htdocs/Tienda/modules/autoupgrade/classes/TaskRunner/Upgrade/UpgradeDb.php(42): PrestaShop\Module\AutoUpgrade\UpgradeTools\CoreUpgrader\CoreUpgrader->doUpgrade() #23 /homepages/12/d299992458/htdocs/Tienda/admin_shop_MRH/autoupgrade/ajax-upgradetab.php(53): PrestaShop\Module\AutoUpgrade\TaskRunner\Upgrade\UpgradeDb->run() #24 {main}