Plugin: Regenerate Thumbnails ERROR undefined [SOLVED!]
Question: I’m a big fan of the Regenerate Thumbnails WordPress plugin, howeve, recently some of my photos aren’t able to have their thumbnails regenerated! All I get is the following error 🙁 Regenerate Thumbnails All done! 0 image(s) were successfully resized in 2 seconds and there were 1 failure(s). To try regenerating the failed images again, click here. To go back to the previous page, click here. Please be patient while the thumbnails are regenerated. This can take a while