A federal website that informs the public about what information agencies are collecting and allows for public comment went down last weekend, and it has only been partially restored. The outage has raised concerns among advocates who already were troubled by the disappearance of data sets from government websites after President Donald Trump began his second term.

The https://www.reginfo.gov/public/ website went offline at the end of last week and was partially restored this week. Data was missing after Aug. 1, according to dataindex,us, a collective of data scientists and advocates who monitor changes in federal data sets.

As of Thursday, the website’s landing page said, it was “currently undergoing revisions.” Emailed inquiries to the Office of Management and Budget and General Services Administration weren’t returned on Thursday.