Yes. The Quran warns that those who cut what Allah ordered to be joined are cursed (47:22-23, 13:25). Keeping ties includes visiting, greeting, helping and forgiving relatives, even when they are unkind.
Аллоҳнинг аҳдини мийсоқдан кейин бузадиганлар, Аллоҳ боғланишига амр этган нарсаларни узадиганлар ва ер юзида бузғунчилик қиладиганларга, ана ўшаларга лаънат ва уларга ёмон диёр бор.
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is cutting off family ties haram?
Yes. The Quran warns that those who cut what Allah ordered to be joined are cursed (47:22-23, 13:25). Keeping ties includes visiting, greeting, helping and forgiving relatives, even when they are unkind.