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  • docker-compose pull error: docker-compose.yml is invalid

I’m trying to start a mailcow server, when docker-compose pull starts I get the following error:

ERROR: The Compose file './docker-compose.yml' is invalid because:
services.nginx-mailcow.ports contains an invalid type, it should be a number, or an object
services.nginx-mailcow.ports contains an invalid type, it should be a number, or an object

what’s the problem, what should I do?

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