Server Error (500) on 'Log entries' Page and Download Error in QField

[rom2049]

Hi,
I deployed QFieldCloud on my server using the following configuration:

COMPOSE_FILE=docker-compose.yml:docker-compose.override.prod.yml:docker-compose.override.standalone.yml

When I push a project and navigate to the 'Log entries' page in the admin interface, I get a Server Error (500), and the project status is failed.

I modified:

QFIELDCLOUD_WORKER_QFIELDCLOUD_URL=http://app:8000/api/v1/

to

QFIELDCLOUD_WORKER_QFIELDCLOUD_URL=http://<server_ip>/api/v1/

This change makes the project status OK, but I get a download error in QField, and the 'Log entries' page still shows Server Error (500).

When I set DEBUG=1, I get the following output on 'Log entries' page :

Could you help me troubleshoot this issue?