You have two different problems there... the licensing problem is the easiest, you've installed the DB2 Connect component which requires a license. Either remove it or install a license.
The second problem, you'll need to check the db2diag.log to see what's going on, but often when the instance is crashing it's going to require IBM support to diagnose. You're not doing anything wrong from what I can see, seems to be a db2 bug (most likely).