How to Rename a JPEG Nested in a Layer in AGOL Map Viewer

[EggandNog]

I have a georeferenced JPEG of a DWG in AGOL Map Viewer. I need to rename the .jpg to match the feature layer name:

However, when click on the .jpg's information tab in the Properties layer to go change the name, I am taken to a JSON web page that requires a login (username and password).

When I login I get this website:

When I click on the .jpg it takes me to another website, the Services Directory website, where I cannot seem to do much.

I own the feature layer, but ownership was transferred to me from the original creator.

How can I change the name of the .jpg to match the feature layer name?