aimp3 commands don't work

[cdfa]

Hi, I'm trying to set mutefm up with aimp3 and i had it working before, but i can't get it to work anymore. I have already tried to reinstall and reset settings and so forth, but no luck. The weird thing is that commands work in the test bar in the background music edit window, but when i click the play/pause button in the normal gui it doesn't anymore. Here's the log:
29-12-2015 21:22:06 AIMP3 Pause
29-12-2015 21:22:06 AIMP3 RunProc
29-12-2015 21:22:06 System.ComponentModel.Win32Exception (0x80004005): Het systeem kan het opgegeven bestand niet vinden
bij System.Diagnostics.Process.StartWithShellExecuteEx(ProcessStartInfo startInfo)
bij System.Diagnostics.Process.Start()
bij System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
bij MuteFm.SmartVolManagerPackage.BgMusicManager._runProcCommand(String command)
bij MuteFm.SmartVolManagerPackage.BgMusicManager._runCommand(String cmd)
bij MuteFm.SmartVolManagerPackage.BgMusicManager.PerformOperation(Int64 playerInfoId, Operation op, String param, Boolean ignoreCommand)

I suspect something is going wrong when saving the path. If there is any way i can find out the exact command it tries to execute i'll be happy to try.