One hint are replace your executable by the latest.
You can found the client 7z files here :
https://dl.ryzom.com/latest/
Download the correct one (for your OS), extract the files into your Ryzom folder to overwrite the ryzom_client executable.
You can found the client 7z files here :
https://dl.ryzom.com/latest/
Download the correct one (for your OS), extract the files into your Ryzom folder to overwrite the ryzom_client executable.