UiPath Orchestrator Database Issue

Maybe this will solve your problem. This user started out with the same problem you had. It contains the same error when he upgraded. On a fresh installation this could happen too. Check the answer of bparson.

and another one about your 3rd error:

I hope the above things can help you in finding the problem.

If you got it solved in the meantime, please provide the answer so it can help others too.