BUG important serveur 1141

Our server 1141 rebooted this Thursday 24/05/2018 (around 10:30 am).
When we were reconected to the server, we found out that 3 chests were missing and 2 alchemists.
Thoses 3 chests were the mosts important ones becauses they were containing 6 archpriest (3 yog, 2ymir and 1 set) and also a lot of orbs.

It would be nice to have some help on this matter.

We are the Olympia Clan.

Thanks a lot.