MRL plugin mines remove automaticly

[centralwtf]

Hey

I have a problem with my mineresetlite plugin (mrl). Everytime I restart the server, all my mines i create (/mrl create {text}) remove.

for example i make mine 1 and 2. i need to restart bcs i have new plugins, and after that all mines are removed. /mrl list

I do /save-all command and idk what else to do. 

Can it be not updated program problem? Or 1.16.1 problem? If so how can I get back to 1.15.2

Everything worked fine to moment when 1.16.1 got updated on mh

Thanks for help!<3