Issue with app being blocked, can't access internet


I'm using Bit Defender 2017.   BD identified an app of being potentially threatening.   I don't feel that it is.  I've used it before and many of my friends use it.   It's called UO Assist from Tugsoft.   I cannot for the life of me find any way to allow the downloaded file and the application to be deemed safe so that I can use it.   I would really appreciate some assistance.


 


Thank you