The problem with a missing ticket is not hard to fix .. but since you have done a lot and made changes etc .. we could make the situation 'worse'.
I advise.
remove all AA files .. all of them.
What you won't have to do:
You won't have to register on the CLP system again
You won't have to register on these forums or the USAAC launch site again.
What you will need to do is go here.. and read the install carefully.
http://www.airattack.us/aa_quick_start.php
Do all the steps.. but .. STOP where it says:
"Close the application out.". STOP when you have closed the application and go no further.
If you can't remember your account info at Ketsujin .. don't worry, just make another account. The point here is to get that 'ticket' file.
Let us know how you do.