Adding New Content ( Images )

Site URL: https://www.brookeraterman.com/

Hello! I have had my website for a while now; I am currently attempting to add new content ( nothing out of the norm ) and I am running into a road block! Squarespace tells me there is an error uploading my images; the pictures I've tried to upload show up as gray boxes. There are no spaces in the images' naming conventions, nor are there foreign numbers or letters ( it's all American English ). The pictures I am trying to upload have dimensions of 11.187 x 8,950 ... I've uploaded images this size before many times previously; I'm wondering why it's not allowing me to do so now. Please help! :)

What is the total file size?  Over 20mb won't upload. Also don't try to upload more than a couple at a time. Could be a bandwidth problem. Sometimes I have to make sure there are no windows updates coming down the pipe (and they tend to update on Tuesdays,) and no streaming going on, so that my uploads to my site are the only thing happening.