[SOLVED]Problems loading the scene

i have the same scene fader script which is working for every other game but I don’t think it have any issues. The problem is when I need to pass to the next scene it happen like in the picture

the code which load the scene is:

if(col.tag == "EndLevel")
            score += 1000;
            PlayerPrefs.SetInt("Score", score);
            if(score > bestScore)
                PlayerPrefs.SetInt("BestScore", score);

Anyone have any idea why this is happening ? I use the latest Unity Engine 2019.1.1

It seems I had to create 2 bools and return out of the function when they where true