You might be thinking: "I’ve used WinOLS 47 for two years without changing my date. Why is this error appearing today?"
Two reasons:
Many unofficial “cracks” for WinOLS 4.7 involve freezing the date or patching the executable to bypass time checks. If your system date drifts past the patched version’s allowed window, this error appears. winols 47 your system date is wrong updated
Fix (for users of unofficial software):