RasPi GPIO control via GCode through Telegram

My Raspberry Pi controls power sockets through 2 relays (one for the printer and one for a light). I have been trying to control the GPIO through telegram.
Fortunately, it is possible to use /gcode command in octoprint-telegram, for this I have installed GCodeSystemCommands.

I wrote a bash file with the following:

gpio -g write 18 0

Tried running the bash file through shell and it worked, but not when trying it via telegram
I tried both;

Am I missing something?