synergy stuck in background ( Mac )

[fido 0]

Hi all .

MacOS sierra.10.12.6
installed latest synergy and its stuck. can't open it . and have to close it using activity monitor . anyone can help?
before I install latest version it was working but not connect to my windows pc so I thought reinstalling it will fix it .just like this all grey and can't open it .
I tried closing it and opening it again , when I boot up my Mac its there in menu bar but not active and can't click anything on it .

any idea how to fix it ?   

(btw I did reinstall it because its not connecting with my pc and that happened after I formatted my windows pc so I thought its good idea to reinstall it on my Mac )

[fido 0]

 am panicking no response so far