Thanks for reporting and the debug report...I will take a look and see what fixes I can find for the ACC (if I havn't already done so).
To update to the ACC (which you should do), please note the update on 01-11-06 - 0109...there are special instructions on updating the Public Gates from the old versions.
Here's a direct link to the post about such things...
http://www.runuo.com/forums/showthread.php?p=464413#post464413
Pretty much, in the ACC system, open PGSystem.cs, set 'UseVersioning' to 'false', load the server and save. Then set it to true and everything will be fine.