Job Level decrease after long time of inactivity

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World name: Ridill
Character name: Vale kelemvor
Retainer name: ---
NPC name: ---
Monster name: ---
Class/Level: Fisherman 50 but now 4 ........
Party or solo: solo
In-game time: -----
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Housing:
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So yea I could not even describe the issue,,,
SO here we go

I only recently reactivated my account after few years of inactivity.
For some reason, my Fisherman level decreased from 50 to 4....
Fishing was basically all I did in the end before I cancelled my account....
The rest of the levels seems to be the same, i don t remember tbh. Bard is still 50 a.s.o..

Also I have seem to have lost all my retainers and items, only the ones on my character are left.

Lot more but these are the main issues.