Requirement: 64-bit Intel CPU, Mac OS X 10.7 or later.
The majority of WinOLS 4.7 users operate with a patched .exe or a license emulator. These cracks often contain a "time bomb." The crack was created on a specific date, and the creator hard-coded an expiration. Once your real system date passes that hidden threshold, WinOLS believes the license has been tampered with and triggers the date error.
Below are proven solutions, ranked from simplest to most advanced.