/datatab/event_dt.rb endpoint broken since firmware D8?

[a8193]

First of all, many thanks for this great documentation!
Until a while I was using the /datatab/event_dt.rb endpoint for getting the logevents from my Envoy. However this endpoint (and also /datatab/inventory_dt and /datatab/admin_dcc_display_dt) is giving an error message. Probably since the update to Firmware D8.
My Python script results in the same errormessage as when I use an absolute non-existing endpoint as /agtydf/dssgrdf
Bearer token authentication is configured in the right way and is working fine for other endpoints.

Someone an idea how to fix this, perhaps by using an other endpoint?

BR Lodewijk