How can I turn off error messages (500 error code)?

Please : be more clear ?

If you have a 500 error : it's an issue.

1. Error 500 as alert after String input in ID field
2. Error 500 after entering '; to the end of url
3. Error 500 after entering a specific value in token field

I want to customize 500 error page response (because server response information about server configuration). Is it possible customize 500 error from limesurvey or only from webserver?

Screenshots in attachments.

SQL server , but for the 1 : you have plugin ? Right ?
bugs.limesurvey.org/view.php?id=17455

About 2 and 3 : happy to have a issue reported.

Else : you can do anytyhing with an extended theme :
1. Extend theme
2. Check github.com/LimeSurvey/LimeSurvey/blob/3....s/layout_errors.twig
3. if i don't make error : code are in {{ aError.type }}