something goes wrong with the server-start.bat
Change:
java -Xms2G -Xmx4G -jar mindcrack.jar -server -XX:+AggressiveOpts -XX:UseSSE
=4 -XX:+UseFastAccessorMethods -XX:CMSFullGCsBeforeCompaction=1 -XX:+CMSParallel
RemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:+UseParNewGC -XX:+DisableEx...