[GoldenLion]

Guys, you don't have to just edit the code a little and post it. Every single code here is the same as mine. Also there's nothing to do with OnPlayerCommandText, because I use zcmd, and zcmd is done with that.
The problem started happening after I added

Код:

CoreVehicles[vehicleid][vehRental]  && PlayerData[playerid][pRentedVehicle] == vehicleid

into the check. That's the problem. Everything else works, I told you. Only thing that doesn't work is /engine on a rental vehicle that's not being rented.