nginx | index.php is downloaded on access

server {
    listen 443 ssl;
    server_name login.domain.de;
    root /var/www/html_domain/projek/login;
    ssl_certificate /etc/letsencrypt/live/domain.de/fullchain.pem; 
    ssl_certificate_key /etc/letsencrypt/live/domain.de/privkey.pem;
    index index.html index.htm index.php;
    
    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.3-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ^~ /account/user2/ {
        auth_basic "user2";
        auth_basic_user_file /etc/nginx/login/.user2;
        try_files $uri $uri/ =404;
    }
    
    location ^~ /account/user/ {
        auth_basic "user";
        auth_basic_user_file /etc/nginx/login/.user;
        try_files $uri $uri/ =404; 
  }
}

server {
    listen 443 ssl;
    server_name login.domain.de;
    root /var/www/html_domain/projek/login;
    ssl_certificate /etc/letsencrypt/live/domain.de/fullchain.pem; 
    ssl_certificate_key /etc/letsencrypt/live/domain.de/privkey.pem;
    index index.html index.htm index.php;
    
    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/run/php/php7.3-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ^~ /account/user2/ {
        auth_basic "user2";
        auth_basic_user_file /etc/nginx/login/.user2;
        try_files $uri $uri/ =404;
    }
    
    location ^~ /account/user/ {
        auth_basic "user";
        auth_basic_user_file /etc/nginx/login/.user;
        try_files $uri $uri/ =404; 
  }
}