Combination product not working after update

[Liam_Cav]

Hi Guys, 

I have an issue on my site after updating to TB 1.4.0. The site seems to be working all okay except for our combination products. All regular single products are able to be viewed, selected, added to the cart etc as normal but when it comes to the combination listings they are viewable in the category but when clicked on to open the product page we get a '500 Server Error'. 

I've had a look through the forum but could not see anyone else with the same issue? Any help would be really appreciated!

Thank you.

[the.rampage.rado]

After you updated to 1.4 did you run the DB update too in Core updater module or you only updated the files?

[Liam_Cav]

Hi, 

Thanks for the suggestion - I am new to this so any help would be appreciated. I have selected 'apply fix' on the database section of all lines in core updater module is that what you are referring to?

[datakick]

Enable debug mode and (or) install collectlogs module. That will tell you what's wrong.

Probably some module that is using Attribute class. That was renamed in 1.4 for php8 compatibility reasons 

[Liam_Cav]

16 hours ago, datakick said:

Probably some module that is using Attribute class. That was renamed in 1.4 for php8 compatibility reasons 

That does look to be the issue, how would I go about getting that to work? 

I've attached the screenshot below of the message.

[datakick]

You have to modify the module code. Replace all references to Attribute class with ProductAttribute.