The project has a new policy:
No more credits on external stats sites, unless you go to the cpdnboinc link at the top left, (just under the big red globe), and read the item in the right hand (News) column labelled
climateprediction.net project GDPR Compliance
Then click on the last link in that item, and tick the box on the new page for:
"Do you consent to exporting your data to BOINC statistics aggregation Web sites?"

Or click on This Link

To get there directly.