InvokeRepeating gives me an NullRefernceException

Scripting C# & .NET
1

I’m working on my medical state, and on the medicalstate class I have used the UnityEngine library while inheritance the MonoBehaviour.
I have this code (this is not the start, update script, that’s a diffrent class):

       if (ExeptedBloodAfterHit >= 2000.0)
                {
                    this.BloodRightNow = ExeptedBloodAfterHit;
                }
                else
                {
                    this.BloodRightNow = 2000.0;

                    /* Disable controller. */


                    /*# Move to unconscious mode.
                    to do: Set timer that every tick you lose some blood untill you die, the timer will stop after you'll be rescued.
                    */
                    InvokeRepeating("UncoiniusDammageControl", 1f, 1f);
                    UncoiniusMode();
               
                }
            }

(part of the script),
and there is a method before that this line was called I got this method:

     public void UncoiniusDammageControl()
        {
            this.BloodRightNow -= 3.3;

            if (this.BloodRightNow <= 0)
            {
                //Change to the dead menu.


                CancelInvoke("UncoiniusDammageControl");



            }
        }

And I have checked 3 times and the name that’s beiing invoked iis the same.
Why does it giving me a NullRefernceException on that line:

                    InvokeRepeating("UncoiniusDammageControl", 1f, 1f);
2

I think it needs to be in its own IEnumerator function. Create that function and call it from where you are now doing the InvokeRepeating.

3

I’ll try that,
Do I have to return yeild and the InvokeRepeating?