My folders just disappeared. They were there yesterday morning, were gone in late afternoon. I restarted ;my computer, didn't help.

The only thing currently listed to the left of my screen are My email address, Inbox, Drafts, Sent, Archives, trash, and local folders.

I had about ten folders that I sorted my email into. They are gone. Clicking on local folders takes me to a screen with "Accounts" (view settings and create new account) and "Advanced features" (search messages and ;manage message filters). Clicking on those does not help. I have searched through all the headings and nothing brings up my folders.