I don't know about that specific error, but you could try using the manalink 2.01 patch, and also Smiling Spectre's ACT fix.
The only place to get them is at the Manalink 2.0 forum at Computer Card Game Headquarters.
Smiling Spectre's fix was long gone because all the links have expired, but he sent it to me recently and now it's back, safe and sound. Thanks Smiling Spectre!