Friendica URL uses // and crashes in contacts menu

Describe the bug

Copying the issue from the Yunohost Forum; posting on Eolab's behalf. They believed this may be linked to their Friendica account not federating properly with Mastodon and other ActivityPub servers (which I also had trouble with), but I'm not sure of this.

Friendica-YNH creates a URL that uses a double forward slash after the domain name; e.g. https://www.domain.tld//network. Mostly the site works, but directs the user to https://contacts/ on reaching the Contacts page rather than the expected https://www.domain.tld/contacts/.

This may be connected to this issue.

Context

Hardware: Old laptop/computer (Intel based)
YunoHost version: 11.2.9.1
I have access to my server: Through SSH | through the webadmin | direct access via keyboard / screen
Are you in a special context or did you perform some particular tweaking on your YunoHost instance?: no
Using Friendica 2023.05~ynh3

Steps to reproduce

Install Friendica, set up admin account and log in
Go to the 'Contacts' page in the top (icon of three people)
Either there, or in one of the tabs in the bottom left (Friends, Followers, Following, etc.), should lead you to the non-existent page https://contacts/.

Expected behaviour

Friendica should have only one forward slash between the domain and the network in the URL, and the contacts (and login) pages should display as expected.

YunoHost-Apps / friendica_ynh