I download DynmapBlockScan-3.7-SNAPSHOT-forge-1.18.2.jar from dynmap.us . It's md5 is not the number in DynmapBlockScan-3.7-SNAPSHOT-forge-1.18.2.jar.MD5 . other versions have the same situation. But DynmapBlockScan-3.4-beta-1-forge-1.18.jar has the same md5 from github and dynmap.us