Tekkit 2 - Server Setup Issues

Hello everyone, I recently started a tekkit 2 server and had began adding plugins, right whenever I thought my server was finished I encountered an issue with giving perms to guest users so I have since deleted all the plugins I had and tried to use spongeforge but can’t stop the server crashing whenever trying to launch. If there’s anyone with experience of use with tekkit 2, I’d greatly appreciate the help.

^Error

More information please. The only thing I can identify from that short log snippet is the versions of SpongeForge and Java you are using. A longer (or complete) server log file would be more helpful.