System Information
- Strapi Version: 3.5.0
 - Operating System: Ubuntu 18.04
 - Database: Postgres
 - Node Version: 12.20.2
 - NPM Version: 6.14.11
 - Yarn Version: 1.22.4
 
I changed the Digital Ocean Strapi from the root (/) to (/ api) now I get an error message, when entering / api / admin.
I’ve tried all possible configurations, I don’t know if the error comes from nginx or strapi.
Error output:
{
    statusCode: 400,
    error: "Bad Request",
    message: "Malicious Path"
}
My server conf:
server {
# Listen HTTP
    listen 80;
    server_name _;
# Proxy Config
    # Client
    location / {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Server $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;
        proxy_set_header Host $http_host;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_pass_request_headers on;
    }
    location /api {
        proxy_pass http://strapi/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
    }
}
            