I'm replying to my own post so that this hopefully helps people. I couldn't pinpoint which mod, however, I'm confident it wasn't the biome's mod, that needed an update. Updating every mod fixed the issue.

My friend and I are trying to get to space to explore the new modpack. However, no matter what we cannot launch the rocket to get to space despite everything that is required being supplied. I attached a screenshot of what the rocket silo looks like.

We do have several mods on; however, none of ...