It's stating to not be able to mount required files. Deleting the mountpoint doesn't work. Entering the prompted admin-password doesn't work either.
Boxcryptor and FUSE have both manually been updated to the newest version.
Here's a terminal dump from running Boxcryptor manually:
2017-01-14 20:04:37.743 Boxcryptor[1368:46871] Error: Can't find model for source store
2017-01-14 20:04:37.743 Boxcryptor[1368:46871] Error Message: Persistent store migration failed, missing source managed object model.
2017-01-14 20:04:37.743 Boxcryptor[1368:46871] Error Domain: NSCocoaErrorDomain
2017-01-14 20:04:37.743 Boxcryptor[1368:46871] Recovery Suggestion: (null)
2017-01-14 20:04:37.797 Boxcryptor[1368:47155] App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
2017-01-14 20:04:37.928 Boxcryptor[1368:46871] [HockeySDK] -[BITCrashManager invokeDelayedProcessing]/878 INFO: Start delayed CrashManager processing
Mounter: the BCFS file system is not available (-1)
fuse: failed to mount file system: No such file or directory