pgAdmin fails to run after installing newer version

Under certain conditions, pgAdmin may fail to run for the first time after installing a newer version. In this instance the previous version of PSQL was v9.4, and the newly installed version was v14.9. This appears to be tied to PSQL trying to upgrade the user database.

Sample error:

<post text after receipt from customer Rus>

The fix is to delete the PSQL local user database, sample location is below:

<post text after receipt from customer Rus>

This should allow pgAdmin to run for the first time.