ArcGIS Pro cannot be set to work in online mode because the Portal you are connecting to is no longer accessible. Please contact your organization's administrator.
I appreciate your response and pointing me to that thread. However, the thread points to a solution of the administrator "reseting the license". This does not help me because I am the administrator and I cannot reset the user license. profwingate1 is the only member of the organization, so I cannot remove the member from the organization, and I cannot unassign the license because it is checked out. If the solution is to contact esri support, how do I do that? I have tried opening a case or chat but my account is not "authorized" for contacting Esri for support.