I did some more testing but somehow I cannot replicate the error anymore (at least not in 30 minutes). Previously this error occurred with Gunicorn and also with the default Flask server it is running fine. So maybe it is more related to some Gunicorn setting as stated here:
I did some more testing but somehow I cannot replicate the error anymore (at least not in 30 minutes). Previously this error occurred with Gunicorn and also with the default Flask server it is running fine. So maybe it is more related to some Gunicorn setting as stated here:
https://github.com/benoitc/gunicorn/issues/1877