This environment has reached the maximum number of published portals.

Certified Lead Developer

I had 2 published portals in version 22.3. Now that my community instance has been upgraded to 22.4 version, I can no longer go to Appian Portal Publisher Manager to Delete or Update existing portals. Trying to create/publish a new Portal object in Designer gives me the following error:

Publishing error. APNX-1-4566-016: Could not publish. This environment has reached the maximum number of published portals. Unpublish any portals not in use, or contact Appian support.

Please advise

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