Although I know that it might sound like I am being a jerk, but I am trying to be helpful:

lemmit does not load in Jerboa

Are you saying that all of lemmit doesn’t load, or just that one community? LemmitOnline is on the federated list for your home instance, so it should be displayed
https://lemmy.world/instances

If [email protected] doesn’t load, but other communities from lemmitOnline do, then your ap might just have issues with how to display locked communities.

If the way to connect to the fediverse doesn’t work correctly, you need to look at the pros and cons of switching to another app, or just a normal browser.

[email protected] (for discussing comic books)

In order to link to a community, you need to start with an exclamation point, and have an at symbol for which instance it is on.
For example, we are on [email protected].
If your ap doesn’t have an eaiser way to do it other that fully typing the whole things out, chuck that back into the cons list of the ap, and re-consider your other options if the cons list is getting too big.
If you don’t have the exclamation point, but you do have the at symbol, your browser will see it as an email.
If you just link the URL directly, it will take you to the host instance website, which a lot of people won’t have accounts on.
https://lemmy.ca/post/17109248