If you're not seeing ANY Ulib or ULX in your start up screen (SERVER, not client), sounds like ULib is missing or paths are off.
I know nothing of artofwar control panel, however, check following
Make sure artofwar is hosting latest Gmod(13) with all patches. Our Github repo only supports Gmod13.
Make sure server is shut down while adjusting any files.
Make sure, if you've had older ULib and ULX, that you removed them from /addons/ before getting latest from github.
Make sure you have both ulib and ulx in your addons folder. (ULX requires ULib of course)
Start server.
If after all above doesn't help, attach server startup log from startup to "join ready".