Secretss

For the people who experience issues add this

command = command:gsub("%s+", "")

just after this.

.....
  print "Awaiting next command.."
  local msg = table.pack(event.pull("modem_message"))
  local command = msg[6]

 So like that

.....
  print "Awaiting next command.."
  local msg = table.pack(event.pull("modem_message"))
  local command = msg[6]
  command = command:gsub("%s+", "")
	

 When you sent string over network card. It adds many space after the text. So with the command I have added it removes all the spaces and let it works as it should do.