Welcome, @dorota_an
We just updated the server to the (pending) next release. This may have caused some interruptions, and there may be a few problems uncovered! This is the broadcast notice we have now posted on the UseGalaxy.org server.
This is the server where you are working at, correct? I’m going to ask our administrators to take a look in general, but if you could share the details for this specific error that might help, too. I would also say to try a rerun again now since yesterday was when we actually updated the software, and maybe that improved the prior problem or some connection was lost temporarily and is now back (ColabFold is a bit special/complicated).
Would you be able to share a link to a small history with the failure? You could copy just the inputs and outputs into a new history and share that slice. You could even start your rerun in that same new history and we can watch it, too. How to share is in the banner of this forum, also here. → How to get faster help with your question. The link can be posted back as a reply.
Thanks for letting us know about the error and hopefully a rerun is enough but we definitely want to follow up! 