Nextcloud and Collabora

Hi there!

I have installation Nextcloud and Collabora on the same machine.
This machine has 2 interfaces (one local 10.232.1.10/24 and another one external 193.45.2.10/24).
My external address working with SSL nextcloud support in nginx, and internal address is plain (local domain). I setup another one section in nginx to support SSL in Collabora. When i connected to Collabora with SSL via NC HTTPS connection i see blank screen, and when i connected to Collabora via NC LOCAL without HTTPS i see blank screen also. When i connected to Collabora withous SSL via NC LOCAL without HTTPS - its working.

Is it real to support Collabora with SSL to external address and without it to internal address?
Whats wrong with my installation?
Thank you!