Ok guys. Thank for coming to the support site and posting the error. Fortunately, the error is not a result of anything I have changed or my code. Actually, a change was made in the Joomla CMS code that created the error. I have researched it, and found the problem, and have requested a pull request on Joomla’s GitHub. It is now up to the moderators to review my pull request and make the change in the next Joomla 4 release. Here is a link to the pull request I made: Update ExtensionAdapter.php #38131
It seems as though the they made a change on June 11, and that is what messed it up. I am requesting they revert it back.