I have Illustrator CS5.1 which did the same (upon quitting, some error is reported).
I kept this link to redo some adjustments that were in one/some of the comments - to get illustrator to work fine (Hurray!). It might be possible that similar changes will do for Photoshop:
I am having an issue ever since installing El Capitan. When using Adobe Illustrator CS5, any time I attempt to use the Eyedropper tool, the program will crash as soon as I click on the object I'm trying to copy the color of. I have noticed that I am able to use the eyedropper successfully ONLY...
community.adobe.com
Good luck!