"User ID" error

Have tried several times to generate the correct shortcode for this public album:

https://plus.google.com/photos/+ChristianKassoff/albums/5985114183441677121?cfem=1&sort=4

Here’s the code the generator generates:

[alpine-phototile-for-picasa-and-google-plus src=”user_album” uid=”+ChristianKassoff” ualb=”5985114183441677121″ imgl=”picasa” style=”vertical” size=”640″ num=”4″ align=”center” max=”100″]

And here’s the error:
Sorry:
– Please recheck your ID(s).
– If you are showing a private album, check that the “Retrieve Photos From” option is set to “User’s Private Album” and that the Authorization Key is correct.

I have tried variations on the User ID and the Album ID, to no avail.

Can you please steer me in the right direction? Thanks.

https://www.ads-software.com/plugins/alpine-photo-tile-for-picasa-and-google-plus/