Open-Crashes-Open-Crashes

I used to love this program, but as of late I have to say I hate it. It used to work just fine and now everytime you open it, it just crashes.

I am on a Layer 3 network, and this was never an issue before. I am now running the lastest version, and it is still an issue.

iMac (27-inch, Late 2013) 3.2 GHz Intel Core i5, 8GB RAM, Fusion Drive OS X El Capitan 10.11.6

ShackAttack963 about IP Scanner Ultra, v3.51