Telegram ላይ contact ውስጥ ስትገባ new channel, new group.... ምናምን የሚል አለ ከሰራልህ ንገረኝ

use pc

This is a bug users have been facing for a long time. Try to create the group from a different account or reinstall telegram. If this doesn't work, simply ask your friends to create a group and add you. Hope it helps.