Please use the three backticks or markdown code block formatting, more details in the FAQ.
As @Wolfgang correctly added, these IDs are auto-generated by the web form. You can just leave them away in your manual configuration. The next time you edit it via the web form, such an ID will be generated and added. No idea, why, but if it works.
In terms of the URLs - that configuration file doesn’t list the
defaults section attributes required for them. You should proceed as highlighted in the docs.
; This selects the backend_ndomy_1 defined below
backend = "ndomy_1"
urltarget = "_top"