Custom connection issue in Connection tab within Staad Pro Connect

I tried creating a custom base plate connection in Connection design tab of STAAD Pro Connect. When I tried to delete this custom connection, it is still visible and not getting deleted. When I tried reset connection Fixed Uniaxial both Axis BP & Fixed Biaxial BP option got removed. Can you please suggest how to restore these default connection templates. I'm using STAAD Pro Connect Edition Update 10