Receieved the following error when trying to access BackOffice. Can anyone help?
Fatal error: Uncaught Symfony\Component\Yaml\Exception\ParseException: The constant "\PrestaShop\PrestaShop\Core\Currency\ExchangeRateProvider::CLOSED_ALLOWED_FAILURES" is not defined at line 16 (near "- !php/const \PrestaShop\PrestaShop\Core\Currency\ExchangeRateProvider::CLOSED_ALLOWED_FAILURES"). in /var/www/vhosts/domain/httpdocs/vendor/symfony/symfony/src/Symfony/Component/Yaml/Inline.php:720 Stack trace: #0 /var/www/vhosts/domain/httpdocs/vendor/symfony/symfony/src/Symfony/Component/Yaml/Inline.php(363): Symfony\Component\Yaml\Inline::evaluateScalar('!php/const \\Pre...', 768, Array) #1 /var/www/vhosts/domain/httpdocs/vendor/symfony/symfony/src/Symfony/Component/Yaml/Inline.php(126): Symfony\Component\Yaml\Inline::parseScalar('!php/const \\Pre...', 768, NULL, 93, true, Array) #2 /var/www/vhosts/domain/httpdocs/vendor/symfony/symfony/src/Symfony/Component/Yaml/Parser.php(771): Symfony\Component\Yaml\Inline::parse('!php/const \\Pre...', 768, Array) #3 /var/www/vhosts/domain/bin /var/www/vhosts/domain/httpdocs/vendor/symfony/symfony/src/Symfony/Component/Config/Loader/FileLoader.php on line 167