Wow guys.
Everyone except @Lothos seems to miss my point.
But anyway, once again:
Stop being mean to me.
I thought it's a recommended build when I updated to 3.1.1 because it seemed so on the website. There is/was no warning or anything.
Besides the update was necessary for us because we had performance issues and the mods contained in 3.0.3 aren't compatible with Spigot MCPC or CB++ MCPC.