Okay so I’m very confused. On the main page under “Recruit Heroes” is states 23 tokens. When I go the next screen to see them, I have 21 under Spicy Taco Vault and none anywhere else. Where are the other 2 tokens? Anyone had this happen to them before?
Probably means you have 2 tokens from an event summon that ended. If so, you can use them when that banner comes back around when that same event does.
Okay, I will try somehow to help you though I didn’t quite understand.
When you start the game, on the main screen, you should have in the lower left a thing showing “Recruit Heroes”. When you click/tap on it, the tabs where Tokens are usually are “Recruit” and “Vaults”. I suspect those 2 are located in Recruit but scroll ALL the way down. Or do the same in Vaults.
Just scroll down, probably that’s why you haven’t seen them. Good luck! 
Do you have any unopened cover packs from previous events? F.ex in my vault I have 7 stockpiled packs from The Hunt:
If that’s not the case, could they be under the Recruit tab?
So I figured out what it was. I had bought the entire (1st) Multiverse of Madness vault and so I was earning tokens for that. Once it was gone I ended up getting some covers from it.