How to stop 301 error only on https, http works fine?

I’ve managed to get rid of the 301 redirect error on my http domain name by removing this line from my nginx config file

return 301 https://$server_name$request_uri;

When I run

curl -I -L http://myapp.com/

I get

HTTP/1.1 200 OK
Server: nginx
Date: Tue, 05 Mar 2019 13:33:42 GMT
Content-Type: text/html
Content-Length: 612
Last-Modified: Tue, 31 Jan 2017 15:01:11 GMT
Connection: keep-alive
ETag: "5890a6b7-264"
Accept-Ranges: bytes

But since I have Let’s Encrypt redirecting all traffic from http to https, I can’t access my domain name without the 301 error.

The https page still has that error.

curl -I -L https://myapp.com/

gives

HTTP/1.1 301 Moved Permanently
Server: nginx/1.10.3 (Ubuntu)
Date: Tue, 05 Mar 2019 13:49:07 GMT
Content-Type: text/html
Content-Length: 194
Location: https://www.myapp.com/
Connection: keep-alive

curl: (47) Maximum (50) redirects followed

Can someone help me to fix the 301 error on the https page?

nginx config file

server {
listen 80;
servername myapp.com www.myapp.com;
servertokens off;
}

server {
listen 443 ssl; # managed by Certbot
server_name myapp.com www.myapp.com;

ssl_certificate /etc/letsencrypt/live/myapp.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/myapp.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot  

root /home/me/myapp/src/myapp;

location = /favicon.ico { access_log off; log_not_found off; }

location /static/ {
    root /home/me/myapp/src/myapp;
}

location /media/  {
    root /home/me/myapp/src/myapp;
}

location / {
    try_files $uri/ @python_django;
}

location @python_django {
    proxy_pass http://127.0.0.1:8001;
    proxy_pass_request_headers on;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_redirect off;
}
}