I have created a new content type, and all of a sudden I can not upload any images to my site. It is a local server so disk space is not an issue.
The error is "The file could not be saved because the upload did not complete.
File upload error. Could not move uploaded file.
This value should not be null."
It is drupal 8.1.8
I have changed the temp directory to a place that www-data has full read and write permissions, as well as changing the files folder to 777, none of which seem to fix the issue.