Byju's — Not working in my samsung phone

I purchased byjus SD card last year, till then it was running perfectly in my new samsung M31, but after the UI3 update, i forgot to remove sd card during update, its not working, when i asked for replacment, the new provided is also not working, showing SD card corrupted.
I checked it in my different device which is 1 year old, and this phone also showed that new sd card is corrupted.
But when I tried to use it ina 3 year old phone which was update 12 months ago, sd card is running properly.
Pls explain this that sd card working in 3 year oldphone but not on the 6 month or 1 year old phone?
Also my phones having a lot of data in my M31 so also cannot format my device.