"Not Enough Storage" Sd card error

[RoadWarriror]

Guys, my phone is Samsung Galaxy J5. I use Android 6.0.1 version.I have a problem: Before I haven't seen this. When I load something on my phone I want to move it to the sd card. When It move, I get a "not enough storage" error. 16 GB sd card is only 2 MB full.

 

[Adorno]

I once had an microSD card become incompatible after an Android update. The phone simply didn't recognise the storage.
Don't know if that could be it.