Media Library suddenly Will Not Load

I opened my Media Library this morning, no problem. I clicked on the “List” view and suddenly Media Library went away. I’ve rebooted, deleted cache, tried Hosting Support, nothing helped. Was told it is a WP issue and to get support here. I thought maybe updating WP would help, but when I go to “Updates”, there is no updates showing available. Any help with Media Library and how to update to latest version of WP would be appreciated.
I’m dead in the water without Media Library.

Thanks,
boy1der