Can't close my Portal Server

Can't close my Portal Server in BF2042, have tried at least 30 times (over hosting or ingame on my server over admin options doesn't matter) - always get the Error Masseage:
AN UNDEFINED ERROR OCCURRED // 12:101002S:4C:-13561655840
Not sure what to do, i want to tried out a other server, but i can only host one at a time :(.
PLS Help