Hello, I tried testing out Pokecube and it did not work. I don't think the one you added is the correct one.
Here's the server log: https://mclo.gs/178iT3c
However I do suggest you change "Pokecube Mobs" into "Pokecube AIO," which is linked here: https://minecraft.curseforge.com/projects/pokecube-aoi
It's made by the creator of Pokecube and has all needed mods to run Pokecube.