Pixelmon server crashing on startup

hey, im new to making modded servers, i wanted to make a pixelmon server just for me and my friends to play on, and i added extra mods other then pixelmon, the server was still working afterwards but i realised that none of the commands worked and i had to install sponge forge, when i did, the server started to refuse working.

Pixelmon: 2838
Forge: 2838
Sponge: 2838

Please try the fixes mentioned in this post, and if things still are not working, share the logs using the methods mention in that post.