As a post upgrade step, have you rebuild the DB context file in new ORACLE_HOME?
Please try to build the context file and run autoconfig with newly created xml file as below :
you have to get the new appsutil generated from apps tier as pert of porting autoconfig to DB tier
What's your application release?
The application release is 12.2.4. I have already patched autoconfig after database upgrade and was able to run autoconfig successfully for the first time with adconfig.sh script.