I am running Odoo 14.0E on Ubuntu 20.04. I have nginx configured on it and running ssl. Everything works well apart from backing up of databases (duplication and deleting works).

I get this error.
Database backup error: [Errno 2] No such file or directory: '/tmp/tmppzfft3fl/filestore/checklist/7c/7c5be11de3effb8b0f10418334bb0319b24f4802'

Here is how my nginx configuration file looks.

# Odoo Upstreams
upstream odooserver {
server 127.0.0.1:8069;

}

# http to https redirection
server {
listen 80;
server_name xxx.xx.xx.xxx;
return 301 https://xxx.xx.xx.xxx$request_uri;
}

server {
listen 443 ssl;
server_name xxx.xx.xx.xxx;
access_log /var/log/nginx/odoo_access.log;
error_log /var/log/nginx/odoo_error.log;

# SSL
ssl_certificate /etc/ssl/nginx/bundle.crt;
ssl_certificate_key /etc/ssl/nginx/xxx.xx.xx.xxx.key;



# Proxy settings
proxy_read_timeout 720s;
proxy_connect_timeout 720s;
proxy_send_timeout 720s;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Real-IP $remote_addr;

# Request for root domain
location / {
proxy_redirect off;
proxy_pass http://odooserver;
}

# Cache static files
location ~* /web/static/ {
proxy_cache_valid 200 90m;
proxy_buffering on;
expires 864000;
proxy_pass http://odooserver;
}



# Gzip Compression
gzip_types text/css text/less text/plain text/xml application/xml application/json application/javascript;
gzip on;
client_max_body_size 500M;

}

Any ideas on what could be wrong here? TIA.