In earlier versions I had tried to start the extended arena on collector start and skipping the original arena fights active in level up 0 which caused this crash. I found that the way the extended arena was written fails because it deletes arnie and respawns him with the new dialogs but this caused aem_arny to be renamed aem_arnynnnn with nnnn being the object id. This causes the gulag scripts to fail as they are looking for aem_arnie and not aem_arniennnn. I removed the code that tries to invoke the extended arena fights from the collector and allow the original arena to remain. It will be awhile before I can insure that all extended fights will be there and work properly but the original arena fights should work after this patch.