Photos On Sub Gallery Main Page Rather Than Inside Subgallery

some how i managed to upload this kid to the front of the subgallery instead of inside the subgallery.

I have it like this

gallery  schools 2024

then about40 sub galleries with each school listed. all student files are password protected.

gallery and sub galleries do not have a password.

where do I go to del;ete hime??

thanks

It will be in the main gallery, scroll down below the sub galleries. You can check the select box under each thumbail then delete in the tray that will open at the bottom.