thats surah al nur innit

theres a difference in translation as with all translations

but but look @ verse 5 of the surah

Unless they repent thereafter and mend (their conduct); for Allah is Oft-Forgiving, Most Merciful

so if they mend their ways and fix up and dont carry on fornicatin or doin adultery, then they will no longer be considered a fornicator a sinner, and they are able to marry whoever they want

mashallah, Allah (swt) is the most raheem, and rahman