Nostalrius Begins - Quality wow vanilla realm (1.12)

ok so i just downloaded Nostalrius today and when i logged in after getting addons when i went to attack something my auto attack wouldent work nothing would attack me after i hit it and it would heal right after i hit it i dont know what to do i really want to play please help

Saw this posted one other time. Don't know whatever happened to the guy as he did not follow up. Sounds like yer stuck in evade.

Addons off.
Try creating another toon and see if same thing happens. Sign back in to original toon and see if same thing happens.