Hi friend,
Thanks for your reply.
Please check the integration url in your admin panel >server settings>integration>url>edit>
http://<yourwebsite>/login_chat.php?username=%username%&password=%password%
ensure it is right.
About the user level judgement,
if a user account group ID = 7 or 8 in database, then he will be judged as admin when he login chat
You can known more details from this page
http://www.123flashchat.com/joomla-chat.htmlIf you need any further support please create ticket for your request with below info.
1 the user account
2 a valid ftp account of your website
Then we can check it for you soon.