Deleted a series from Sonarr, now I can't add it back

I was trying to fix some misrecognized files (deleting samples that were tagged by Sonarr as full episodes) and in the process, I deleted the series from Sonarr. Now I’m ready to add it back in, but Sonarr will neither add it as a new series or as an existing series from disk.

Is there a way around this, or do I need to set up Sonarr from scratch?

Windows 7 x64

EDIT Waited 30 minutes, restarted, maybe TVDB had some downtime.Issue is resolved.

Is the folder still there? If so search for an existing series and locate the folder.

I’ve already tried that.

Originally: The folder is “The Twilight Zone”, and Sonarr correctly recognized it as The Twilight Zone, and gave options for The Twilight Zone (2002) and The Twilight Zone (1985)

After removing the series, when I try to add it, I only get options for the 1985 and 2002 series, but not the original.

Waited 30 minutes, restarted, maybe TVDB had some downtime.Issue is resolved.