Wanted to know if anybody could help me solve this problem. I have been trying to upload files to Omeka but I keep getting this error whenever I try to view it or even upload it. I did have a photo at one point, tried clicking on it to see the public page, and got this error. This also occurs when I try to upload a PDF as one of my items. Unsure how to fix this or where to go look for a solution.
This is coming from the YouTube Import plugin you have installed. You, or someone anyway, deleted the “Player” item type metadata element that plugin adds and needs to work.
If you’re not actually using the YouTube Import plugin, then the simplest fix here is to uninstall it.