Explanation
B: Insufficient environment permissions
Users in the environment must have the Environment maker security role before a bot can be shared with them.
System administrators of the environment need to assign the Environment maker security role to the user before you share the bot.
C: Share Power Automate flows used in a bot
You can add actions to a bot using flows in Power Automate; however, flows in a bot aren't automatically shared with other users when sharing a bot.
Users who don't have access to the shared flow can still run it by using the test bot canvas.
To let other users edit or add flows you'll need to share them in Power Automate. You can open flows directly from the topic where the flow is used.
Reference:
https://docs.microsoft.com/en-us/power-virtual-agents/admin-share-bots
https://docs.microsoft.com/en-us/dynamics365/customerengagement/on-premises/customize/create-site-map-app