KevinTheJedi Hi Kevin, i appreciate your answer.
By my mistake i was using php8.3, however i downgraded to 8.1 (and 8.2 before it) as the link you provided sugests and keep having an issue with ldap, then i could log in with users that are already in my database but users who never logged in are not automatically created and returning "Access denied" message.
Responding your question, i was getting the contacting admin error loging as User.
After try downgrade i tryed the other solution, downloading the more recent version of LDAP Plugin. Now, as User, I cannot log in with any user (registered or no in the database) but osticket return no message.
This is my Information Page now:
Also, i record this video showing that osticket dont return any message. The user in this example is not in the database.
https://youtu.be/N3qLaFOnP9s