I am getting the same problem. The description below provides a clear step by step description of what is happening. Hopefully a moderator will weigh in. Make sure everyone opens technical support cases with PlayOnline also.
I usually play FFXI all weekend, every weekend, although in the past I have played a lot more during the week also. And I just played FFXI last night. However, all of a sudden I cannot play due to this problem.
When I logged into my Play Online/FFXI Account this evening to play FFXI, I received an error message stating “PlayOnline services currently cannot be accessed because the selected PlayOnline Account has already been closed, or because service fees have not been paid. By reactivating your PlayOnline account, you will be able to access PlayOnline Services again. Reactivate PlayOnline Account? (LM-08)”.
When I click the “Reactivate Button”, I am taken to a Playonline logon screen where I enter my Playonline ID and Password and then I click the “Log In” button.
Immediately after I click the “Log In” button, I get “Error UCS-5024. Invalid process. Please exit the current application”.
At that point, I am unable to do anything more, except log off.
If I try and log in via the PlayOnline membership information portion of the square-enix website at https://secure.square-enix.com/cisweb/app, I get an error that says “PlayOnline services currently cannot be accessed because the selected PlayOnline account has already been closed, or because service fees have not been paid. By reactivating your PlayOnline account, you will be able to access PlayOnline services again. For more information, please log in to the PlayOnline Viewer. (LM-8)”.
Hopefully a moderator will weigh in on this issue and provide some kind of time line to getting this fixed.