The plugin won't start because of an error

[MEFRREEX]

I have a plugin that I once wrote another person and I did not check it then because I did not need this plugin, but now I need it and when I try to run it I write an error:

I would be very grateful if someone could help me correct the error

 

[Neal9292]

The Config seems be Null.
Contact the Plugin Owner

 

[MEFRREEX]

The Config seems be Null.
Contact the Plugin Owner

I won't be able to contact him anymore. And what does this mean, how can I fix that the config is null?

 

[MEFRREEX]

The Config seems be Null.
Contact the Plugin Owner

The point is that in this plugin initially there is no config, after loading it must be generated and there should be stored some parameters