HaK Personnel Blog (share your knowledge with others to help you to increase your knowledge)

 if you are using reverse proxy like nginx, then please do below method to fix the problem. add line proxy_read_timeout 300000; in nano /etc/nginx/sites-enabled/odoo.conf  location / {         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;         proxy_redirect off;         proxy_read_timeout 300000;         proxy_pass http://hrms;     }