Apple Time Machine lost over 500 days of backups
I noticed my 2tb time capsule was blinking yellow, I disconnected and reconnected the power to reboot it. When I checked my Time Machine status it said I hadn't backed up my computer in over 500 days! Needless to say, I was surprised since I have had daily backups automatically scheduled since I got the thing in 2013. 2 days ago my backups were up to date. Is this thing trashed? The router functionality is still working just fine, I don't exactly want to shell out the money for a new one. Is there a way to recover the lost data? Naturally, I'm doing a backup as I write this, but I anticipate that taking FOREVER. Is there a way to avoid the stupidly long back-up in the future?
MacBook Pro with Retina display, macOS High Sierra (10.13.1)