We're a tool provider and we are trying to integrate LTI 1.3 into our app. We've created the developer keys and when tried to initiate a login request.

Getting the following error when we use https://canvas.instructure.com/api/lti/authorize_redirect

{"status":"bad_request","message":"Invalid lti_message_hint"}

And the below error is occurred when we use https://<custom-domain>/api/lti/authorize

{"errors":[{"message":"An error occurred.","error_code":"internal_server_error"}],"error_report_id":41}

We're using canvas aws instance from bitnami (AWS Marketplace: Canvas LMS packaged by Bitnami (amazon.com)).