In response to TrudyLatte ():

Hi of admin to player, we are ban (I who wanted to reassure my players lol)

In response to Orange ():

Are your plugin is up-to-date?

In response to Wulf ():

I suspect this is the cause:

p.SendConsoleCommand("noclip");

Why exactly are...

In response to TrudyLatte ():

Hi of admin to player, we are ban (I who wanted to reassure my players lol)

In response to Orange ():

It disables noclip if it was ON. Because if you will fly without admin privs -> ban 

In response to TrudyLatte ():

I was on the ground and I have make the command
I put the last version of plugin (1.0.3)