Trouble adding photos

I have been trying to add topo photos to routes and keep getting this error message:

The object could not be loaded (invalid id '0'). If you're uploading a photo, the file size might be too large.

I have been trying on and off for a number of weeks, keep getting the same message.

Yes I have been trying to post photos that are less than 1 meg.

format is JPG. simple stuff, nothing huge or fancy.