Recently we upgraded a Samsung Galaxy J6+to a Galaxy A20e. The J6+ I unlocked, removed the SIM card, downloaded a number of suitable VR videos onto an SD card and gave it to my grandsons with a Destek VR5 headset. I had so much fun setting it up I thought I would do the same with the A20e, bought another headset and even bought a 128gb SD card to cover much longer videos. The app I'm using is DeoVR, Cardboard based, so Google Cardboard also has to be installed. Everything worked fine on the J6+ but I cannot access the SD card on the A20e. The card is shown as 9C33-6BBD but when I try to access the files the message in the subject line above keeps coming up. I have given permissions to both apps. At least one other VR app can access the card but is user friendly. I'd rather stay with DeoVR. How do I get past this error please?