A chameleon is supposed to lay the eggs in a hole in the ground....or in captivity, in an appropriate container of moistened washed playsand which you should have provided for her.
Even though she has dropped a lot of eggs already I would put an opaque container at least 12" deep by 12" x 8" filled with washed playsand that has been made just moist enough to hold a tunnel. Hopefully she will lay/has laid all of the eggs....because if she has retained some of them it will likely lead to eggbinding.
60 eggs is a lot! You must be overfeeding her...and that can lead to egg laying issues, constipation, MBD and even a prolapse.