* Please Help! * Error message 'SoulseekQt cannot be opened because of a problem'

Hello Everyone,

Having some strange problems with my Soulseek on Mac. It's been working just fine for months and then today
a question mark appeared over the icon in the dock and it wouldnt open at all.
I then downloaded it again and it just keeps coming up with an error message saying "SoulseekQt cannot be opened because of a problem" I've tried several times to reinstall but i'm not getting anywhere!

Would really appreciate some help, has anybody else had this problem?

Thanks