Where are you trying to import it from?

From the end of titan quest I want to start over thanks for your reply

THQNordic won't fix all the broken achievements on GoG so good luck with that.

No, I mean is this an old character from the disc version of the game? If you're on local saves it should import all your characters automatically. What the heck does that have to do with the OP's question? They're not asking about achievements, they're asking how to import a character.

My point is that if it is a GoG related issue, THQ Nordic won't fix the problem in a timely fashion or at all.

If you are a Steam customer, the problem would not exist or be fixed immediately.

Afraid you're off course on that. Steam users don't get anything fixed quicker than GOG.

I know the GOG achievement problem was passed on to the devs, what's being done about it I don't know. Might be exactly the same problem on Steam for all I know. Not that interested in achievements myself. If I get one fine, but I don't go hunting for them.