I have uploaded the photo from URL (it was not mine, I wanted to see the resolution in order to know the constellations). As it started resolving, I went to results page and tried to change privacy so nobody would take it as my work (I have no intentions to take the copyrights, only for my interest and internal information). It seems during the same time the photo was resolved. The 500 error appears when trying to view the photo
http://nova.astrometry.net/user_images/385240 (while the thumbnail in images list is displayed correctly).
I have uploaded the same photo for the second time, but it gives the same error even after successful resolution, when going to results page. Previous upload allowed to go to success page and displayed the image. It seems only resolved photo is not displayed.
The error lists:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, [no address given] and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.