Alright i installed spongevanilla-1.10.2-5.1.0-BETA-366. I put VoxelSniper plugins (yeah i’m sure is 1.10.2 , i also tryed with other versions) but when i open the server and go in game voxelsniper is not working 
Here is the last server log
It is necessary to remove:
VoxelSniper-8.0.0-SNAPSHOT-javadoc.jar
VoxelSniper-8.0.0-SNAPSHOT-sources.jar
Is to leave:
VoxelSniper-8.0.0-SNAPSHOT.jar
Still not fixed
That log file looks incomplete as it doesn’t cover the complete startup of the server with the plugin enabled. If you can post a full log of one server run test - startup, test some commands in the plugin (/b, /v, etc.), then shutdown - an error might display and tell us what the problem is.