OmniPlan crashing... solution

For last few days my OmniPlan 1.6.3 was crashing on my MacBook Pro. 

Deleting the app (prescribed uninstallation) and installing fresh version did not help. 

After the talk with the (very nice) customer support I deleted all of the ... 

com.omnigroup.OmniPlan.plist

files the app starts with no problems. 

I am very happy!

PS: OmniGroup just hired 40th employee, I have been a user for years, congratulations!