Getting error

Im a making a Clicker Game, and i got it kinda working besides the upgrade part, when i try to get cash from script, i get error

 Assets/Scripts/Upgrade_Manager.cs(11,21): error CS1061: Type `Click_Manager' does not contain a definition for `Cash' and no extension method `Cash' of type `Click_Manager' could be found. Are you missing an assembly reference?

Here is my code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Upgrade_Manager : MonoBehaviour
    public Click_Manager otherScript; //Change the type to the name of the script
    void Start()
        otherScript.Cash = 12; //Setting a variable in otherScript
        print(otherScript.Cash); //Getting the value of a variable in otherScript, print was used for demo purposes and is not needed

It’s saying that it can’t find “Cash” in your Click_Manager script. You may be typing it in wrong, it’s hard to tell exactly what’s wrong without seeing the Click_Manager script, but usually, you get these errors from misspellings. Check your capitalization too!