Google translate not working

When I try to translate a Theme to another language I get this error as shows in the laravel.log file: [2019-09-16 08:36:49] local.ERROR: preg_match() expects parameter 2 to be string, array given {"exception":"[object] (ErrorException(code: 0): preg_match() expects parameter 2 to be string, array given at /var/www/_____/Corals/core/Foundation/Console/Commands/TranslateLocalisation.php:144)
[stacktrace]
#0 [internal function]: Illuminate\\Foundation\\Bootstrap\\HandleExceptions->handleError(2, 'preg_match() ex...', '/var/www/...', 144, Array)
#1 /var/www/_____/Corals/core/Foundation/Console/Commands/TranslateLocalisation.php(144): preg_match('/:\\\\S+/', Array, Array)