Huge bug, or malware?

I used the app a few times and it worked great, untill I tryed to close out. The program will not stop running and will not allow my MacBook to restart, shut off and it uses some ram. I don’t know if this is a bug or if this was intentonal, but it needs to be fixed. Don’t install this app until this is fixed!

My Mac:
MacBook Pro 13.3 inch 2.x GHz
8gb RAM
256 SSD
OS X Mavricks

Rob-T. about MicroWave Express - Audio Editor and Recorder