Can you prove there is one?
How about unicorns? Are we required to believe in unicorns until someone proved they don't exist?
You don't comprehend how science works.
First, one proposes a theory, such as that oxygen is necessary for combustion.
Then one devises a plan to disprove the theory, such as lighting a candle and depriving it of air.
When the flame extinguishes, the remaining gases in the experimental vessel are analyzed by weight and other criteria.
It is not possible to compare the universe in which we live with one that clearly has no god in it.
So what science can conclude is that it is impossible to prove or disprove the existence of any deity.
The burden of proof always lies with the person who postulates the theory.
That is briefly how science works.
If you do not nderstand this,. then you are simply ignorant and your opinions are scientifically worthless.