Why can I no longer access my sd card samsung s5

A

AC Question

I have a Samsung s5 with an sd card for additional memory. Now after updating the system, although I am not entirely sure if that is the cause of the problem although it seems timely, I cannot properly access my sd card. The device still recognises the sd card and I can see the photos and music stored on it however I am unable to save any additional information onto the card even though it's almost empty and I also can't delete or move things stored on it. My device is now running update 6.0.1

I'm not very tech savvy at all and the only advice so far has been to root my device as it's an issue with the updates. I have zero idea about that, even after googling, it seems beyond me.
I'd love, although I'm not too hopeful, if there was an easier fix.