C# teleport problem

So
I am trying to make teleport, when player jumps on a box to another scene
I got a controller from asset store: LINK
I made a code for teleport: LINK and it didn’t work. I started to browse some threads and came to the conclusion that i have to add tags. Applied a “Player” tag functionally (when selecting body LINK)
Errors started hitting me. Firstly there was an error in code. LINK and after I added tags to code, so I got this: LINK afterwards which I got mistake “The referenced script on this Behavior is missing!”

Pls help. Maybe another way of making teleport or some corrections to my actions

How to report your problem productively in the Unity3D forums:

http://plbm.com/?p=220

How to understand errors in general:

https://discussions.unity.com/t/824586/8

Please use code tags: https://discussions.unity.com/t/481379