Well a few days ago just before the server crashed I put like 4 SP into Brandish (16-20) and 8 SP into Achilles (0-8). When it was back online and I checked my skills Brandish was back on 16 and Achilles back on 0. The 12 SP were just gone. I'm not the only one with this problem. Dang told me that the same has happened to his priest before.
I think in cases such as server crashes is it likely for accounts to get messed up. You should contact a GM for assistance to get it manually repaired.