Probuilder throws NullReferenceException when Extruding object on Android

Hey, I'm trying to Extrude a ProBuilder object during Runtime and it works on Editor but when testing on Android it gives me a NullReferenceException... Unity version 2019.4.5f1. Probuilder version 2.9.8f3.

Android Logcat Message:

Error Unity NullReferenceException: Object reference not set to an instance of an object

Code that gives the Error (Lines 5, 6, 7):

Code (CSharp):

1. CurrentLevel = Shop.GetComponent<PlayerSeeds>().CurrentLevel;
2.  
3. ProBuilderMesh PB = gameObject.GetComponent<ProBuilderMesh>();
4.  
5. PB.Extrude (new Face[] {PB.faces[0]}, ExtrudeMethod.FaceNormal, CurrentLevel*50f);
6. PB.ToMesh();
7. PB.Refresh();

 

Sadly that didn't work, in addition to NullReferenceException, it also threw me an

ArgumentNullException: Value Cannot be null. Parameter name: indexes.

 

So the ProBuilder face that I'm trying to extrude is the top face of a cylinder that I made by hand from the editor. I haven't added any other geometry, only merged the top side faces to a single face.

 

Alright, I will thank you for trying to help. Honestly, if there is an alternative to this I wouldn't mind changing my code, I just don't know ProBuilder that extremely well and the documentation kinda went above my head.