Cannot change the language on front page

[vincent0511]

When change the language it shows error like this, any idea how to fix this?

Fatal error: Uncaught Symfony\Component\Translation\Exception\InvalidResourceException: Invalid resource provided: "1.2"; Errors: [ERROR 1877] Element '{urn:oasis:names:tc:xliff:document:1.2}trans-unit': Duplicate key-sequence ['bea8d9e6a0d57c4a264756b4f9822ed9'] in key identity-constraint '{urn:oasis:names:tc:xliff:document:1.2}K_unit_id'. (in /home/builder7/public_html/ - line 554, column 0) [ERROR 1877] Element '{urn:oasis:names:tc:xliff:document:1.2}trans-unit': Duplicate key-sequence ['bea8d9e6a0d57c4a264756b4f9822ed9'] in key identity-constraint '{urn:oasis:names:tc:xliff:document:1.2}K_unit_id'. (in /home/builder7/public_html/ - line 559, column 0) in /home/builder7/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php:200 Stack trace: #0 /home/builder7/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php(60): Symfony\Component\Translation\Loader\XliffFileLoader->validateSchema('1.2', Object(DOMDocument), '<?xml version="...') #1 / in /home/builder7/public_html/vendor/symfony/symfony/src/Symfony/Component/Translation/Loader/XliffFileLoader.php on line 200