What are those red seeding bars?

[kagaminelen]

I use uTorrent, and some seed bars are looking like this:

Is there anything wrong?
Can I just delete them?

[Priest]

What it means is that uTorrent has encountered an error. Click on rastreador and it will show you the status of the torrent. If it says it is unregistered then you can go ahead and delete the torrent. IF not try right clicking on the torrent and select actualización Rastreador

[cannonmc]

It could just mean that the tracker is down temporarily. No harm in deleting them if you have completed the download. Or just leave them and see if the tracker goes live again