Good evening ?? Mommies, who is on IV, can you please tell me what to …

Good evening ?? Mommies, who is on IV, can you please tell me what to do ? I started transitioning to Frisk with hip clothes, today 30ml gave, 90 with crying somehow ate... The next feeding in refusal. Ate 40ml out of 120 with crying, a couple of sips and that's it, cries, cries, nervous. I don't know what to do, Frisk ate 30 ml in seconds. Who has experience? I'm afraid to go straight to new one, I know the intestines can be torn ?