I have a simple point feature layer and would like to run the "Find Hot Spots" tool. However, no matter what I do, I am always getting the same (incredibly *not* helpful) ERROR 000582: Error occurred during execution. I have re-saved the feature layer, tried with and without Analysis Field within the settings. No luck. Does anyone have an idea why this may happen? Many thanks.

That's my point feature layer (approx 63K entries in total).

The error massage.