Nostalrius Begins - Quality wow vanilla realm (1.12)

Why do i get fatal error every time when i try to bid on item on AH with my main (happening the last 10min). When i get to some of my alts everything is fine. I made alot of bids before that. I hope the anti-cheat doesnt think im some kind of bot or something

My mistake. Guildies said that theres a limit of 50 items to bid