Stuck on startup

[dracotech2]

So, i've been trying to play a 1.7.10 modpack and minecraft freezes at post initialization 5/7 Ars Magica 2, i've solved this problem before by changing some conflicting IDs but it seems not to work again.

What i think is causing the problem: Ars Magica 2, since always gets stuck at this point.

Here's the log:
https://pastebin.com/z1QnufBq

[felipeleite5w]

So, i've been trying to play a 1.7.10 modpack and minecraft freezes at post initialization 5/7 Ars Magica 2, i've solved this problem before by changing some conflicting IDs but it seems not to work again.

What i think is causing the problem: Ars Magica 2, since always gets stuck at this point.

Here's the log: https://pastebin.com/z1QnufBq

did you fix it?