Hi,
I'm trying to make an flow with microsoft planner.
I want an email notification sent to the person assigned to the task when the task is marked as completed.
Here is the flow:

This is the error I get:

This is the raw output error:

Error Details:
The 'inputs.parameters' of workflow operation 'Send_an_email_(V2)' of type 'OpenApiConnection' is not valid. Error details: Input parameter 'emailMessage/To' is required to be of type 'String/email'. The runtime value '"d173892d-2883-4629-9793-fdf2a9ca996b"' to be converted doesn't have the expected format 'string/email'.
I'm new to flows. But this is a basic flow and I don't know how to fix it.
Any help would help!
Thank you!