The install.log is showing the following error post upgrade:
The log may show multiple query names:
3/08/20 3:11 PM (Java) Error validating NSQL
3/08/20 3:11 PM (Java)
3/08/20 3:11 PM (Java) Query name=Issues Listing : Query ID=<Query.ID> : Content Source=csk.niku.com : cmn_nsql_queries.id=5001000
3/08/20 3:11 PM (Java) You must correct invalid NSQL queries. In PPM Studio, go to the NSQL tab for each failing NSQL query. Click the 'Preview' button to view the error details. See the Change Impact Guide for further information.
This can be due to custom queries that require corrections post upgrade.
Release : All Supported Releases
2. Check for additional errors in the install.log that may be the root cause of the failure that require fixing prior to retrying the upgrade.
Note: The warnings are not blocking the upgrade and will not fail an upgrade