SD won't encrypt or decrypt or work after removing phone battery

I removed my phone battery when the phone was on without turning it off first, my SD card was encrypted, so now I cannot access my SD card contents on my phone while phone detects the SD card. Moreover, when I turn my phone on, encryption page shows after boot, giving me the option to encrypt or decrypt the sd card and selecting either encrypt or decrypt won't do anything. So how can I decrypt my SD card and access my data? My phone uses android version 6