That's because you are probably logged in with an instance that hasn't updated to 18.0 or higher (like lemmy.world for example). This makes Jerboa crashe immediately. If you uninstall and then reinstall the app you are logged out and the app does not crash.
I made a request a while ago to move alovoa to the fediverse. Imagine a federated dating platform, where you can choose your dating server by interests and so on...
fosstodon.org - They are very competent people and there to stay.