After deploying a schema update there was an error message that said

Whoops. Looks like an internal server error. Please contact us from the Console (<https://console.graph.cool>) or via email (support@graph.cool) and include your Request ID: eu-west-1:simple:cjlv40y0f0v1f0182phsfu1w3

and now I'm also getting that in the dev console in my browser when trying to use the now broken app.

i have same problem. i have problem with tables. or add/delete table with which is problem. or add new node