I have figured out why it still shows the error even if all the configurations exist and are active. OOB problem module configurations use the problem state field, which has also been used in the filter conditions in the Problem Overview container.
If you have any customizations around this field (like creating a new choices which are not OOB or created a new state field) then it will show the empty in the condition field as shown in the screenshot then it will not and show an error message.
Please update the state field to reflect the actual state values in your instance then it will start load the overview page without any issues.
We did the same and it worked for us.
Thank you.
Regards,
Brahma
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