There barely any movement in the gallery today

this problem started since yesterday

You may find Slayerduck at this IRC:
rizon.net/8886 #booru

I've been trying to catch him or other administration too

safebooru.org/index.php?page=post&s=view&id=1533003
Is the last upload from Danbot and of course it's deleted.

Thanks for the report.
I'll keep any eye on it. I have also 'rizon.net/chat #booru ' left notice with Slayerduck.

You can, if you feel adventurous too
rizon.net/chat
<nickname>
<#booru>
/nickserv group #booru
/msg slayerduck=
... or something.