@vanina.guernier Please try a rerun. For any job failure, at least one rerun is recommended to eliminate cluster issues.
If those fail, then check the error messages and the inputs. There might be a problem that could be fixed, or the data could be too large to execute on the public server.
This FAQ helps with identifying and addressing the most common data input problems that lead to tool errors:
More comprehensive help, including links to GTN tutorials, is here. Unicycler is covered in a GTN tutorial under the topic “Assembly”.