I cant get rid of this message

"Your active theme does not include bbPress template files. Your forums are using the default styling included with bbPress"

I get this message across all my multisites whenever a site owner is in settings header image. Ive tried every notification disabling plugin and trick there is but cant get rid of it.

Any ideas...

ps I am using gridmarket, marketpress and buddypress and all are fully updated versions, ive had this message for ages and only now decided to try and get rid of it