Corrupting save file

hey,

this plugin corrupted my game file - tried it on a test server with this plugin alone, and the server cannot load the save after. 

This is just new. Several owners I am in contact with use this plugin. Please give me more details

when the plugin is enabled and the server saves, after a server restart, we are no longer able to load the same save.
This issue only happens when we use this plugin (please note, we reproduce this issue on a test server, so we only have this plugin running)

This is super strange, haven't had this issue, but I can show you / reproduce it on demand. 

saving the server? or the data of the plugin?