Help#2 (Other wasnt working propply)

[twiglet101]

I was doing a MQ with my friend and then i got disconnected and it said something about a 3rd party application what does this mean? and what is 3rd party Application and it said i can be permanently banned D; i don't want to be permanently banned D; It says: You've been disconnected for using unauthorized 3rd party application any further attempt at using such application my result in permanent account closure Please help!?