Creating a new LXC-Container with template fails. Failed to download


i wanted to create a new lxc-container but it failed to download the system-index. I searched in the forum and found this topic which seems to be identical. In the Forum it was stated that it is resolved but i get the same error:

ERROR: Failed to download
lxc-create: test: lxccontainer.c: create_run_template: 1621 Failed to create container from template
lxc-create: test: tools/lxc_create.c: main: 319 Failed to create container test

SSL is activated in LuCi
All the necessary packages are installed
Turris Omnia with TurrisOS 6.2.4
lxc-create version: 4.0.10-5

I switched from the web interface to the cli because i there was no image to choose from.

Can anybody help out?

Duplicate of Not possible to download LXC images