[Oh]

parp.pwn(28607) : error 010: invalid function or declaration
parp.pwn(28609) : error 010: invalid function or declaration
parp.pwn(28611) : error 010: invalid function or declaration
parp.pwn(28615) : error 010: invalid function or declaration

28607 : if ( newstate == PLAYER_STATE_DRIVER )
28609 : if ( IsAnAirVehicle ( GetPlayerVehicleID ( playerid ) )
28611 : if (PlayerInfo[playerid][jProfesion] == 1 | PlayerInfo[playerid][jProfesion] == 2 | PlayerInfo[playerid][jProfesion] == 3 | PlayerInfo[playerid][jProfesion] == 4)

Removed the return 1; but this is the error for it too.
28615 : return 1;