You've stumbled upon the infamous Time Loophole of Doom, where the fabric of space-time is twisted beyond recognition.
A clever trickster has exploited a temporal anomaly, causing a rift in the fabric of reality.
As a result, the timeline is now a mess of conflicting events, and you've found yourself in a rather... interesting predicament.
Learn more about the Cause of the Chaos.
Take a stab at Fixing the Broken Timeline.
Or, if you're feeling particularly adventurous, you could try Embracing the Chaos.