All I want to know is what “Server Address” am I meant to use for webo.hosting. I’ve tried https://webo.hosting, https://cloud.webo.hosting and not one has worked. Likewise I’ve DuckDuckGo’ed this query and no helpful results showed up. I’ve also asked for help in the #nextcloud IRC channel and no help so far.
I think, best would be to directly ask your hoster Webo not the Nextcloud community. From what I can see on their website, Webo provides different services to their customers, most likely all relying on a custom domain which you have to register for the service.