Banned

The server still detects incorrect files on your cf installation. Unless fixed it will keep banning you.

When you start Crossfire it takes some time to compute and compare file hashs and then downloads necessary files. It could be that some files could not be downloaded. Try to post the content of the log view from the launcher - maybe that could shed some light on it.

Or you are using forbidden cheats that are detected and thats why you are banned too. But that's just another possibility, not saying that you do that