I'm getting the following error when trying to upload images to my site using DevDemon's Channel Images (v5.4.18):
Server response was not as expected, probably a PHP error. OPEN ERROR
Clicking on the OPEN ERROR link presents me with a blank white screen.
I'm running EE 2.9.0 and also have the Expresso fieldtype installed (v3.3.3). However, the Channel Images field is listed before the Expresso one, when editing my Entry. I noticed some other posts had found that to be a solution in the past.