Will Allah forgive a repentant slanderer, and does that contradict the Hadith: "A slanderer will not enter Paradise"?

Backbiting is the act of conveying speech with the intent to cause mischief, and it is considered one of the major sins. A backbiter will not enter Paradise unless he repents with a sincere repentance, and backbiters are among the worst of people. The correct repentance for backbiting requires abandoning the sin, regretting it, and resolving never to return to it, in addition to rectifying what was corrupted and seeking forgiveness from the wronged person if no greater harm would result from doing so. Otherwise, it is sufficient to seek forgiveness for him.