I'm unable to play Rohan because I get an error that says 'You have been disconnected. 5101' at the end of the loading screen after selecting a character. Clicking the 'Confirm' button on this pop-up closes the game.
This issue started on Tuesday April 22nd after the maintenance.
I have made several attempts to log in at different times of day with different characters and a different account.
The server's status is online and usually 'moderate'.
I have been playing regularly for about a month (including the day before the maintenance) and never had this problem before.
I have not broken any rules or done anything to warrant a ban.
My computer is new and fully updated.
The Rohan client is new and fully updated.
My connection is fast and stable.
I have not made any changes to my computer, connection, or antivirus recently.

I have tried the following steps:
• Go to your Rohan Game Client folder
• Delete all .set file (eg. 12343456.set)
• Delete "GameGuard" folder
• Delete or clear your history and cache on each and every browsers you have
• Run the execution file named as "rohanclient"
• Let it patch and close it afterwards.
• Run the execution file "Loader"
• If still cannot log your account online.
• Restart your computer
• Make sure that you already deactivated your Antivirus.
• Try to log your character online again.

I have also tried uninstalling the game, deleting the Rohan folder, and installing a newly downloaded installation file.
I have not found a solution on these forums.
I have submitted a support ticket about this issue but have not received a reply.
How can I continue to play? Any help would be appreciated.