Error lightroom catalogue cannot be opened because of a data issue, this is a brand lew laptop

You have to be more specific. What version of Lightroom? Lightroom Classic has a catalog, Lightroom has a local cache called the Lightroom library. And what does ‘a data issue’ mean? Do you get an error message? If so, post a screenshot of it or say what it says, word for word.

post this in the lr forum, https://community.adobe.com/lightroom-ecosystem-cloud-based-677

p.s. change your title to avoid a duplicate message problem.