FTB Infinity: Will not launch server with additional Mod

[FenixVale]

Title:

FTB Infinity: Will not launch server with additional Mod​

Launcher Version:

1.7.10​

Modpack:

Infinity​

Modpack Version:

1.7​

Log Link:

http://pastebin.com/LwWtt4Zi​

Details of the issue:

I am trying to launch an FTB Infinity server with the addition of Ars Magicka 2 into the modpack. If I do not have that and the AnimationsAPI mod in the folder, the server will launch fine and generate the world. If either of those two mods are in the mod folder, however, the server will not generate the world, and will produce a crash report (Linked in the pastebin)​

 

[defakto]

Do those mods require additional files?

 

[ToedPeregrine4]

I am having this issue as well, but just trying to add Ars Magica 2 and the required AnimationAPI. I am fairly certain that the issue is with loading AnimationAPI, as I removed AM2 and tried it. Here is the crash report:

http://pastebin.com/HdcAVuMj

Any help would be lovely. I've looked into it to the best of my ability, I am not a modder, just a mod user, and I have not seen this issue solved anywhere. It works just fine in singleplayer, with no crashes.

 

[jikuja]

Update AnimationsAPI

 

[ToedPeregrine4]

Update AnimationsAPI

I am using the most up to date version of AnimationsAPI avaliable, MC Version 1.7.10, API v1.2.3

Edit: Okay, so I found a v1.2.4 on the Curse DL page. I really would have thought that the original forum thread would have the most up to date versions. That worked.