Is there a Minecraft mod that can't handle Advent of Ascension?

If you create a modpack in Minecraft, it can happen that two mods do not "tolerate" so the modpack does not work. When I wanted to add the Mod Advent of Ascension to FTB's classic crackpack, that's exactly what happened and the modpack did not want to start. Do you know a solution to this problem?

The mod is almost a modpack of its own, which works with few other mods to get things into play.