Gods are all powerful beings who are eternal and have existed within the past, present, and future of a universe's timeline. However, every god also had a beginning. These beings were once mortals who gained tremendous power and ascended to the astral plane, the realm parallel to the mortal world. Through this method, a time loop was created, in which a deity has always and will always exist, yet was created at a certain point in time. Whenever a new god is created, the universe molds itself around the new deity's history, adding it to the timeline. This event alters other events in small and major ways, as the timeline accomodates the new entry into the pantheon. This is known as a retcon, in which a world rewrites itself to change a backstory to create a new canon. The mortal world can then be said to be an evolving universe, with it adding successive "patches" to the original to create a more perfect version of itself, similar to a software company releasing updates to fix errors and bugs to a released product. However, problems arrive with each new upgrade, and has led to numerous inconsistencies which a minority of people have realized.
With every retcon comes certain hangovers from the old timeline. Certain people continue to remember the previous revision, basically waking up to a world that has completely changed and that they don't recognize. Other individuals have two sets of memories of the old and new, living with dual memories. Other errors are much larger. A retcon can even create two different versions of the same thing, such as individuals or even nations. Entire countries left over from the old revision end up living alongside their new counterparts, each remembering different pasts and leading to mass confusion. This has sowed chaos in many parts of the universe, as individuals struggle to reconcile the fact that reality has changed, sometimes in drastic ways (ex. An America that remained subjects to Britain living next to the U.S.A.). The number of these errors are tiny, but grow with each new revision. Where they once appeared at only .001% of the time, the number has been steadily rising with each new retcon. Today it occurs at .1%, and continues to go up with presumably no end. Eventually this will cause some major issues for the universe on a grand scale.
How can each successive upgrade to the original universe lead to increasing number of errors?