I'm seeing this aswell. I think it's safe to just ignore it for now.

Some lemmy instances are running pretty slow. Maybe because of the reddit protest. It’s my first day here, maybe its normal.

Servers are under heavy load.

You get a timeout message whenever the app gives up on waiting for the server to send back a message when you do something. Like when you upvote, you send a request to the server and the app waits for a response to confirm that it actually went through. The servers are under heavy load and either dropped your request or failed to respond to it in time, so the request 'timed out'. It may have gone through, but the app won't know.

Its probably the Influx of new users

Uhm also using Jerboa I would say , just give it time (?)

I stopped using Jerboa. A chromium based browser works better. Firefox works for most stuff but has difficulty with displaying error popups.