Nostalrius Begins - Quality wow vanilla realm (1.12)

Please help, i was doing Taming the beast quest for hunter, taming surf crawler and it stucked, cant dismiss it so i can't continue to scorpid. I can't see pet picture below me, when i was trying to tame scorpid game said that i already have pet.

Edit: I'm in the game now

Try using /script AbandonPet()
If not, look for a macro that will abandon your pet through the script function

Done, thanks a lot.