Unity: mario's animation isn't working

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C#

Unity

Hello everyone,

I am working on a Mario Clone, and it all worked well until I started to add some animations to Mario. I've got a feeling that is has something to do with the Coroutines.
Here is the code for the PlayerMovement Script: https://pastebin.com/fVf0jbnP
And here is the MarioAnimation Script: https://pastebin.com/n66UwBT2

Thanks in advance!
- Xaaf Code

What I have tried:

I've tried putting a Debug.Log() in the If-statements to see if it reaches that block of code, and it did not appear to reach it. This makes me this that the Coroutine doesn't even start. Is this the case here? And if so, how would I fix this?