How to resolve this, please?
Try running the job again. The issue was likely related this one of these. Both are now resolved at UseGalaxy.org.
- RESOLVED: usegalaxy.org is super slow: 11/8/2022 Confirmed job delays - #4 by cmpetit or
- RESOLVED: Upload tool on the website: 11/8/2022 UseGalaxy.org confirmed data loading failures
If you are working somewhere else, rerunning is still probably the best way forward. For persistent failures, the first topic above has instructions about what kind of information we need to help more at this forum (server URL, tool, link).