[Rachael]

learn to use strcmp

pawn Код:

if (strcmp("/fixveh", cmdtext, true, 10) == 0)

you are asking the script to check if the first 10 characters in cmdtext[] are "/fixveh" which is only 7
This may or may not stop the command from working, but its still not correct.

pawn Код:

if(!strcmp("/fixveh",cmdtext,true))

Also, I am not sure about this, but RepairVehicle(); might not work if the vehicle has no driver.