I just installed Botania R1.3 152 on my custom[1] Direwolf 1.7.10 (v1.0.3) server and it now crashes when I try to start it. I'm not sure what's wrong, but since it started when I updated Botania I'll try my luck here. :)

Some logs:
fml-server-latest.log
crash-2015-01-19_08.54.13-server.txt

[1] I have installed a few new mods and updated some existing mods myself. Complete Modlist.

You forgot to get rid of the old Botania version.

Holy crap.. I feel so f*ing stupid right now. :D I need more coffee..