Hi! You might have to reinstall the wallet from scratch then (only if you have your 12 secret words available).
- Uninstall it using
"C:\Program Files\Daedalus\uninstaller.exe" - Delete directory
"%appdata%\Daedalus"completely - Download latest version from daedaluswallet.io
- Install and restore your wallet from the 12 secret words
Sometimes rarely update may come in conflict with the local state of the wallet. Installing it from scratch is the cleanest and safest option.