Welcome, @Guzmicu
We have a pinned guide here that explains how to request more quota space.
How-to varies by server … for the UseGalaxy.eu server there is a quota request form. Where to find it is explained in the guide. Short answer: on the server homepage. Click on the far upper left Galaxy icon to reset your view to that homepage on any server.
For an emergency, or really any reason, you could move data around between public servers and use them like another cloud storage resource – because that is exactly what they are! This isn’t live storage but still storage. How to do everything is in that guide but let us know if you have any questions. The EU server will take up to a few days to grant your request – but moving data around is entirely under your control, so you can do that right now.
Hope this helps! 