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Hello! I need help solving a problem. I tried to upgrade my Prestashop from 1.7.7.0 to 1.7.8.2 with 1-Click Upgrade addon, and something went wrong. After that, all the refreshes on admin/backoffice or website goes to an Internal Server Error (HTTP ERROR 500). Checking the "error_log" file, I get this log for both pages: [22-Dec-2021 23:12:24 UTC] PHP Fatal error: Uncaught Symfony\Component\Config\Util\Exception\XmlParsingException: [ERROR 522] Validation failed: no DTD found ! (in n/a - line 2, column 68) [ERROR 73] expected '>' (in n/a - line 67, column 11) [ERROR 76] Opening and ending tag mismatch: xliff line 2 and xlif (in n/a - line 67, column 11) in DIRECTORY_TO_SITE/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php:66 Stack trace: #0 DIRECTORY_TO_SITE/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php(146): Symfony\Component\Config\Util\XmlUtils::parse('<?xml version="...', NULL) #1 DIRECTORY_TO_SITE/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php(54): Symfony\Component\Config\Util\XmlUtils::loadFile('/home/s001539/d...') #2 DIRECTORY_TO_SITE/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php(42): Symfony\Component\Translation\Loader\XliffFileLoader->extract('/home/s001539/d...', Object(Symfony\Compo in DIRECTORY_TO_SITE/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php on line 56 I tried to fix it in different ways: checked the PHP version and all the extensions checked the minimum and recommended versions and extensions with "PHP PrestaShop Info" (phppsinfo.php), and all the items is OK in green color downloaded the latest release of Prestashop and updated (and replaced the existing) files by FTP executed the "composer upgrade" command to rebuild the vendor folder clear the "var/cache/" content Nothing solved my problem. Any suggestion? I would love not to lost all the installation of my website, avoiding to make a new fresh installation on it...

Hi Guys, i'm a newbie i was working on my store translation manually thru Cpanel modules, and i finished i went to backoffice to clear cash and i got this error; Fatal error: Uncaught Symfony\Component\Config\Util\Exception\XmlParsingException: [ERROR 4] Start tag expected, '<' not found (in n/a - line 1, column 1) in /home/MyDomaineName/public_html/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php:62 Stack trace: #0 /home/MyDomaineName/public_html/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php(131): Symfony\Component\Config\Util\XmlUtils::parse('a<?xml version=...', NULL) #1 /home/MyDomaineName/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php(54): Symfony\Component\Config\Util\XmlUtils::loadFile(Object(Symfony\Component\Finder\SplFileInfo)) #2 /home/MyDomaineName/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php(42): Symfony\Component\Translation\Loader\XliffFileLoader->extract(Object(Symfony\Component\Finder\SplFileInfo), Object(Symfony\Component\Translation\MessageCatalogue), 'ShopThemeAction...') #3 /home/MyDomaineName/public_ht in /home/MyDomaineName/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php on line 56 i'm using Prestashop 1.7.6.5, Thanks in advance Guys " The Best Community ".