Error message after update to backlight 5

Backlight 4, 5 & 6 Support
#1

I just updated to backlight 5 because I was getting errors in my shopping cart in backlight 3.
Now I have installed backlight 5 and now I see the following error:
Backing up databases…
Backed up master.sq3
Upgrading to version 5.9.0…
Adding field for Album Publication Date
Upgrade to 5.9.0 completed
Upgrading to version 6.0.0…
Upgrade to 6.0.0 completed
Upgrading to version 6.9.0…
Adding privacy support for Top-level Galleries
Unable to upgrade to version 6.9.0
Error message: SQLSTATE[HY000]: General error: 1 no such column: visibility

When I try to view photos on a customer page, I see a red area with an error message with the text:
Something went wrong
PDO->prepare() returned false. sql: ‘SELECT id, parent_id, publisher_root_id, slug, breadcrumb, title, template, visibility, enable_login_to_access_protected_photos, logged_in_can_access_protected_photos, enable_password, username, password FROM album WHERE id=?’ params: array ( 0 => ‘516506’, ) in PdoExtended.php on line 603

#2

After making some space on the server I reinstalled everything. I still get the same error as under backlight 3, namely the following:
Something went wrong
Implicit conversion from float 867.768595041322 to int loses precision in ShoppingCart.php on line 707

This happens when I put things in the shopping cart (digital file) and then want to view the shopping cart.

#3

Hi @leonvanlier, I haven’t come across that error before. Can you provide me with a Backlight admin login so that I can look into this? The best way is to click on my profile name followed by clicking on Message.

#4

i just tried something. When I add a “digital file” as a product I get the error. When I then add another product, the error message disappears. If I delete that new product, the error reappears.