Nostalrius Begins - Quality wow vanilla realm (1.12)

Hey so I started to play on this server today.
I got to lvl 15 and I realized I couldn't learn all the spell upgrades/spells that are mentioned in this list: https://forum.nostalrius.org/viewtopic.php?f=40&t=837

I am confused because I couldn't really find an answer in the forums so I decided to make a new topic.

For example at lvl 10 I should get:

Drain Soul (Rank 1)
Create Healthstone (Minor)
Demon Skin (Rank 2)
Immolate (Rank 2)

from the list, but I could only learn Drain Soul (Rank 1)

So is this a bug, or is the list faulty here?

You need to finish the quest for the voidwalker pet, check your class trainers and they should have a quest, complete that and you will learn to spend soul shards on things like summoning a pet.

That quest is very important to finish as soon as possible, so I recommend you drop anything youre doing and go finish that, the voidwalker is simply that much better while leveling.

I solved the problem: I had to uncheck and then check the available spells at the trainer so they show up.