Secure file vault won’t open

I’ve copied hundreds of photos and videos on the flash from my iphones but 2 days ago when trying to open the vault on both of the flash sticks it’s keeps giving me the same message! An unknown error occurred please restart the application and try again! Which I did many times and it still won’t open. Even though the other pictures on another file opens!

Can someone please help me with this.
Thank you

Hi @samm,

Please contact the SD Technical Support team for best assistance and troubleshooting: