Welcome @ChloeB1999
Your jobs are most likely queued. This is expected at any time but especially right now. With the UseGalaxy.eu server offline for maintenance there are likely many more people working at the UseGalaxy.org server.
So, if you inputs are ready to process and the mapping tool is queued, you’ll need to wait for that to complete. Avoid stopping or restarting, since that will put all of your new jobs back at the end of the job queue again.
If you want to share back workflow invocation we can take a look to make sure more is not going on. Sharing the invocation is like sharing a history but happens in fewer clicks. Maybe give that a try? You can paste the link back here in a reply.
Screenshot
XRef
Let’s start there! 