I changed a config that removes the levelling system for tools and the server wont start but when i revert to the original configs it works, the consile says that the blocks are missing but then nothing happens.

add -Dfml.queryResult=confirm to your start script

for example on a server tmux new -d -n "rr" "java -Xincgc -Xmx10G -jar -Dfml.queryResult=confirm KCauldron-1.7.10-1481.139-server.jar nogui" just stuff it after you see the java command or where ever before the .jar file on the line.

That's the System property you use when there is any world changes for any server, that's as much help as you can get with no fml log.

@Electedpredator Please always include server console log files when submitting issue reports. If it is a crash related issue, Please post a crash report. However in this instance, as @skaviouz has stated, your server is not crashing, but it is waiting on you to either type confirm in the console and hit enter, or you need to enter the above into your server startup script file.

As this is not an issue with ITT, this issue should be closed.