ULX MOTD disable close button

[Lolomat]

Hello,

i am running a ttt server, and i use a modified motdmenu.lua.
It adds to buttons, one kicks you and the other activates after 5 seconds, so u have to read the rules,
but u can also press the X in right top corner.
So i want to disable this cross.

Regards,
Lolomat