It was reported on different crypto news publishers that localbitcoins.com have already announced their closure on February 16, 2023 and onwards will be the time for those users that still have got funds left to withdraw.
How to get all information about the owners of that scam company, for example Sara Leppänen is it possible to find our her ID?
You can easily google them and the name that will appear is different from what you've mentioned and that was said by dansus. I think that you've landed on a wrong domain and website and that's like a phishing and copycat of localbitcoins.
For more info visit their service closure announcement through their official website:
https://localbitcoins.com/service_closure/