Unable to upload file

server {
    server_name my-domain;

    # allow large file uploads
    client_max_body_size 50000M;

    # Set headers
    proxy_set_header Host              $http_host;
    proxy_set_header X-Real-IP         $remote_addr;
    proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;

    # enable websockets: http://nginx.org/en/docs/http/websocket.html
    proxy_http_version 1.1;
    proxy_set_header   Upgrade    $http_upgrade;
    proxy_set_header   Connection "upgrade";
    proxy_redirect     off;

    # set timeout
    proxy_read_timeout 600s;
    proxy_send_timeout 600s;
    send_timeout       600s;

    location / {
        proxy_pass my-ip;
    }
}

server {
    server_name my-domain;

    # allow large file uploads
    client_max_body_size 50000M;

    # Set headers
    proxy_set_header Host              $http_host;
    proxy_set_header X-Real-IP         $remote_addr;
    proxy_set_header X-Forwarded-For   $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;

    # enable websockets: http://nginx.org/en/docs/http/websocket.html
    proxy_http_version 1.1;
    proxy_set_header   Upgrade    $http_upgrade;
    proxy_set_header   Connection "upgrade";
    proxy_redirect     off;

    # set timeout
    proxy_read_timeout 600s;
    proxy_send_timeout 600s;
    send_timeout       600s;

    location / {
        proxy_pass my-ip;
    }
}

alt-svc:
h3=":443"; ma=86400
cf-ray:
8ffb84c3ce496f6c-CDG
content-type:
text/html
date:
Fri, 10 Jan 2025 09:09:27 GMT
nel:
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to:
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Pwfp1nu8s1RKd9eNBGhWVSgTP7u2rVABYdIjrlpRKiKGty1TNN7w8BNg7dNVWiHguaHR6IUU6%2Bcz7mCGyV66Qjq4TcWgSLn6izd27H7qGjQy7H02rhS8zkStsuJrrYTZ5A%3D%3D"}],"group":"cf-nel","max_age":604800}

server:
cloudflare

alt-svc:
h3=":443"; ma=86400
cf-ray:
8ffb84c3ce496f6c-CDG
content-type:
text/html
date:
Fri, 10 Jan 2025 09:09:27 GMT
nel:
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to:
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Pwfp1nu8s1RKd9eNBGhWVSgTP7u2rVABYdIjrlpRKiKGty1TNN7w8BNg7dNVWiHguaHR6IUU6%2Bcz7mCGyV66Qjq4TcWgSLn6izd27H7qGjQy7H02rhS8zkStsuJrrYTZ5A%3D%3D"}],"group":"cf-nel","max_age":604800}

server:
cloudflare