Nostalrius Begins - Quality wow vanilla realm (1.12)

I really hope that a GM can help me asap with my issue; I got a instant DC and after I logged back in on my level 12 warrior.. I was unable to move - also, I cannot write in general chat etc even thou I can see people write.
I tried to unstock, delete different folders, relog etc. Nothing works.

had same problem, also was unable to take starting quest from undead zone. like 50 relogs ( dcs) helped

I fixed it.
For anyone having this issue:
Copy your WTF folder to desk and delete it inside wow folder. Log on your char, exit wow and copy the WTF folder back in the wow destination.