PS4 PRO freezes and then crashes, what can I do?

As already described above, my PS4 hangs up and crashes after a while. On some days it works, on the other days it crashes after 2 hours or after 5 minutes. Have really done everything you can do, nothing helps. Unfortunately I have no guarantee anymore, only the guarantee but it is of no use to me anyway, because I can't prove anything. Did someone possibly have the same problem and know what about the PlayStation? Possibly something with the hardware? Should I bring them in for repairs or get me a new one?

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