Eroare fatal dupa traducere

[Ghimby]

Salut comunitate,

Sunt mai nou in Prestashop si am neoie de ajutor.
De fiecare data cand modific o traducere se strica platforma si nu stiu ce sa ii fac.

Am instalata ultima versiune de Presta php 7.4 si o tema cumparata.

Rog pe cineva care e dispus sa ma ajuta chiar si contra cost.
 

Eroarea:

nu merge sa accesez nici admin

Notice: Undefined property: DOMDocument::$documentElement in /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.phpon line 568

Fatal error: Uncaught Error: Call to a member function getAttributeNS() on null in /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php:568 Stack trace: #0 /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php(89): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->validateSchema(Object(DOMDocument), false) #1 /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/Config/Util/XmlUtils.php(146): Symfony\Component\Config\Util\XmlUtils::parse('<?xml version="...', Array) #2 /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php(379): Symfony\Component\Config\Util\XmlUtils::loadFile('/home/kukukiro/...', Array) #3 /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php(44): Symfony\Component\DependencyInjection\Loader\XmlFileLoader->parseFileToDOM('/home/kukukiro/...') #4 /h in /home/kukukiro/public_html/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.phpon line 568