i got rid of it right after the restart
1 simple command, poof
let me know if you see that kind of thing i didnt even know that was going on for apparently some time
now i have a simple command to easily clear that kind of crap if it happens again
also if im not on you can do this, select a range under that kind of thing, use //set lava
let all the junk burn up
then //undo
hahaha
i let the plugin author know that it is susceptible to griefing