Help - Unable to add flow to PowerApps

Hi Guys,

Hope you can help. I have inherited an app from my predecessor, within which there is a flow that i cannot seem to add anymore. I added a PowerAutomate flow in and by doing so, it removed the other one. Both flows have nothing to do with eachother. One sends an email, and one sends a team message based on different information.

I have tried adding this flow back in, but the following error comes up;