Mounting external device disenter error 49153

Hello all,

I am having problem so access my sd card “jet drive transcend”. It does not appear in finder, but I can find it in disk utility as “TRANSCEND - USB internal physical volume” Under the “APPLE SD CARD READER MEDIA - GUID partition map”.

If I try to first Aid the GUID partition map there’s a error with the message “problems were found with the partition map, which might prevent booting. Couldn’t mount disk. : (-69842)

The TRANSCEND is not mounted, when I try to manually mount it on disk utility a message is shown “could not mount transcend. (com.Apple.DiskManagement.disenter error 49153.)”, first aid completes successfully.

It was working fine and I never get it off my computer.

tried to enter safe mode, restart computer, update IOS, but nothing works...

Can any one give me a hand on this? I have important data on this sd card.