Themeco\Cornerstone\Parsy\Token::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/nuga1/nugabestbg.com/wp-content/themes/pro/cornerstone/includes/classes/Parsy/Token.php on line 33.
Disable all plugin
Clear all cache
Error not resolved
Can’t istall or delete plugin and cornerstone don’t work
