Noodle Dreamsx-
Everytime i try to go in, i must talk to this 'Gustav' which i swear i have already done a LONG time ago. It's really frustrating and...
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Why am i even typing this, you guys don't care anymore about this site.
Double check that the problem isn't just on your current server.
If it isn't, you need to complete his quest line, which you can start by talking to the guard north of the entrance to Barton Town (very southeast of Barton Town).
If you say you were able to get in previously, only one person in the group needs to successfully complete that quest line to allow the whole group in.
Your account is too new to have any permanent/semi-permanent glitches on it.