why my sd card wont show up

[AC Question]

I have a stylo 2. I have a 32 gb SanDisk sd card. It has worked before but all of a sudden it doesnt show up in my phone i cant download anything on my phone bc i have about 4 apps downloaded. Please help.

 

[Tim1954]

Take it out and give the gold contacts a gentle clean.. Try again.
If that fails, try card in different phone. Try in pc... (don't format it!) of it works it may be your reader. If it doesn't it's the card.
Try different card in your phone. That
Will confirm the reader is faulty.