After trying and trying last night to get all of my photos online, I came to a standstill with weebly. Apparently in order to store that many photos, I would need to upgrade to weebly pro- an expenditure I cannot afford. I decided to go the old Photobucket route for the slideshow in my gallery- though loading times may be slower, I can upload an unlimited amount of photos. I can even update on the go with my Photobucket mobile app! Finally, a solution that works.