The Final Mod Pack already has an extended selection of UFOs, it is not compatible with YetMoreUFOs since both make changes to UFOs (and the associated maps/terrains).
Furthermore, you have activated all three variations of YetMoreUFOs, when you are supposed to only used one at a time:
Three rulesets are included (use only one of them):
You should really read the instructions provided with mods if you are not familiar with the game/mods/code enough to debug it yourself. It will save you a lot of trouble if you do things properly. Reading those, you would also notice that Luke's Extra UFOs is not compatible with YetMoreUFOs and that the Final Mod Pack includes Luke's Extra UFOs.
I suggest you turn off all the Yet More UFOs ruleset (and you might have to reinstall fully, since YetMoreUFOs changes map and terrain files in ways that makes them unusable by Luke's Extra UFOs or the Final Mod Pack).
In general, running other mods along with the Final Mod Pack is a rather risky proposition unless the mod is REALLY simple.