I did a fresh install of Ubuntu 13.10, and then ran apt-get install ryzom. The client downloads the contents, and then it stops. If I manually try to start it from the command line this happens:
~/.ryzom$ /opt/ryzom/ryzom.sh
Found 228 BNP files in /home/drogos/.ryzom/data
Updating /home/drogos/.ryzom/client.cfg...
Patching Ryzom data...
Launching Ryzom...
PANIC: unprotected error in call to Lua API (attempt to index a nil value)
~/.ryzom$ /opt/ryzom/ryzom.sh
Found 228 BNP files in /home/drogos/.ryzom/data
Updating /home/drogos/.ryzom/client.cfg...
Patching Ryzom data...
Launching Ryzom...
PANIC: unprotected error in call to Lua API (attempt to index a nil value)
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Ryztools