Cannot get non grouped report out.

[gocamiot]

Morning @RamezIssac ,

I am trying to get a list report out.
I would like to have multiple filters.

class ListOfDevicesNow(ReportView):
report_title = _("List of devices")
report_model = network_snapshot_1
# report_title = _("No-Group-By Report")
# date_field = "import_date"
date_field = "import_date"
group_by = "DeviceName"

columns = [
    "DeviceName",
    "Model",
    "DeviceSerialNumber",
    "InAD",
    "OsVerTxt",
    "AD_distinguishedName",
    "user_Email"
    # ComputationField.create(Sum, "quantity", verbose_name="Total quantity sold", is_summable=False),
    # ComputationField.create(Sum, "value", name="sum__value", verbose_name="Total Value sold $"),
]

Calling that gives me:

Its a long list with only DeviceName populated.

Can you help me to get going pls.

Have a blessed day mate.

Regards
Jakes