Failed to start app: The service project-web-1 did not start (unhealthy), so the application was not started either. It printed: 2026/09/29 23:12:00 [emerg] 1#1: host not found in upstream "api" in /etc/nginx/conf.d/nginx-mempool.conf:56 nginx: [emerg] host not found in upstream "api" in /etc/nginx/conf.d/nginx-mempool.conf:56 /var/www/mempool/browser/resources 2026/09/29 23:12:01 [emerg] 1#1: host not found in upstream "api" in /etc/nginx/conf.… The full output is in the deploy log. | Deploy …
Error recorded 1 times in PanelAlpha Engine deploys on Docker Compose. The deploy log below is the recorded failure output.
TypeErrorAn error that occurred in the deployed application. It is not necessarily a PanelAlpha Engine error, but we keep working on improvements so you run into fewer of them.
Seen1 times
WhereDocker Compose
StatusObservedOur team will look into this soon, verify the cause and try to fix it in an upcoming release.
What the log looks like
Deploy log
Failed to start app: The service project-web-1 did not start (unhealthy), so the application was not started either. It printed: 2026/09/29 23:12:00 [emerg] 1#1: host not found in upstream "api" in /etc/nginx/conf.d/nginx-mempool.conf:56 nginx: [emerg] host not found in upstream "api" in /etc/nginx/conf.d/nginx-mempool.conf:56 /var/www/mempool/browser/resources 2026/09/29 23:12:01 [emerg] 1#1: host not found in upstream "api" in /etc/nginx/conf.… The full output is in the deploy log. | Deploy …