One of the worst disguise plugins to hit the market, not only is the programming completely full of bugs, the author doesn't seem to care about the lack of up-to-date documentation.

NOTE: These versions will NOT work with older versions of Minecraft.

Spigot page: Link

When posting an issue:
Please make sure you

1. Post a stack trace error, if no stack trace, then post the odd behavior
   
2. Post the exact steps you used in order to reproduce the issue.
   
3. Give as much information as possible as to what the issue is and why it occurred so that we can fix it.