A common misconception is that Occam's Razor says "when dealing with a problem with multiple explanations, the simplest explanation is correct".
But more accurately, Occam's Razor states that the correct answer is the simplest one that ''also'' agrees with all of the facts. That is, Occam's Razor is not about simplicity; it only demands that the explanation be free of elements that have nothing to do with the phenomenon and the explanation.
And, in the most persnickety and technical sense, William of Ockham created the Razor to avoid God or AWizardDidIt as an unreflective solution to scientific and philosophical questions. The Razor is not an assertion that unobserved or immaterial causes are disproved or presumed not to exist (or proved/presumed to exist), but that one should not multiply causes as explanation of material phenomena unnecessarily (i.e. given that they cannot be observed, the empirical sciences restrict their scope to material causes and make no claims whatsoever about form, finality, or efficiency).