Hi! Are you referring to a notification about "targeted messages"? That was caused by a bad filter in the Adblock Warning Removal list. The list authors fixed it last week. If you haven't already received the update automatically, please update your filter lists manually in AdBlock's options, FILTER LISTS tab.
If that doesn't help, feel free to open a ticket at help.getadblock.com and we'll be happy to look into this with you.
