So I'm on Nintendo switch and I try to open minecraft then it goes to a black screen for around 10-15 seconds then goes to 45 percent forever then when I close out it says "This software was closed because of an error" but then when I make a new switch account it works just fine? I have restarted my switch, I have reinstalled minecraft, and I have looked up this problem just to find nothing. Please help, my minecraft username is barrel_Texas3988.    

Update: it takes around 30-45 minutes to load