Server Help

Hi, I was doing some worldedit. I had to make a test block and it was around 100,000 - 150,000 blocks that were changed. My staff can join the server perfectly fine, but when I join it makes all my players crash out of the server, and it stops the server and starts again. This is very annoying and I can join with my alts perfectly fine. I thought that maybe it was a chunk error with the worldedit so I went to the place where I made the edit and its still does nothing. When I go to multicraft, all hell breaks loose and the console logs are zooming across the screen. I got a giant message for one second in the console log and it was like

-------------------------------------------------------------------
WorldEdit
Link: (dunno)
. . . .. . .
. . . . .. .
-------------------------------------------------------------------

I would like to be on my server soon.

Thanks <3