Adding SSH key and now getting 403 Forbidden nginx

I have uploaded several experiments to pavlovia, but this time when I tried to add one from the Builder, and then went to pilot it online it said I have to have a SSH key. So I followed the instructions and added the key and saved it. Now it will allow me to set my experiment to Piloting from Inactive, but when I try to actually pilot it it goes to 403 Forbidden nginx. I’m not sure what to do about this.