[keycloak-user] Internal System Error on screens when a code is expired

Hello, There are some screens / links generated by Keycloak that make use of an authorization code, like registration link, forgotten password link, verification link, etc. When those codes expire or a code is already used, the feedback to the user will be just an Internal Server Error screen. This is not very user friendly, since the user doesn’t know what he has done wrong (eg: a simple refresh on the register page will trigger the issue). I wonder if there is a simple way to modify this behavior, and for instance show a different error message informing of the actual problem (eg: the code is invalid. Please go to {link} to restart the process), or this is really a new functionality to be requested to the Keycloak team via JIRA. Regards, Federico