Conference room log disabling

Hello. On our jabber server we have such problem - every day when users login to chat it popup’s all room conversation. I use Miranda as jabber client and tried to clean journal for room but no results, it appears again after re-login. I’ve tried to delete history but it didn’t work. In room settings “log room conversation” is not marked. Also in openfire database I’ve dropped all rows from table ofMucConversationLog, but it didn’t help In ofMucRoom field LogEnabled value is 0. It still popup’s all old massages in main room.

Where does openfire store this logs and how can i delete /disable them?

Admin Console > Group Chat > Group Chat Settings > select your conference service > History Settings > select Don’t Show History

thanks. after service reboot it helped. seems that i’m blind