Adding DVR in observium but not polled the information

Dear Team,

I am using the community eddition of observium and adding the different types of devices for testing purpose. I have added a Dahua DVR which is successfully added in the observium but device isn't polling properly. It is only showing the port details, nothing else. What should I do to get full details of that device through observium. This is a best network monitoring tool and we would love to work with observium.

Please get back to me as soon as possible with the resolution of my query.

I am attaching some screenshots for your reference.

Thank you