Older version stopped working due to the new restrictions/rules from Facebook.
The new version requires a different workflow. Basically it requires an access token for each album/gallery now.
Check this video for setup instructions: https://www.youtube.com/watch?v=M2Fz9Mxp5Z8 (It's for WordPress but the token generation part is the same)
If you already have the latest version, you probably just need to get a fresh token from fb.srizon.com
link eg: https://www.savokusic.com/proizvodi/prozori/drveni-prozori
All images from fb gallery are not displayed
Forgot the key?