An invalid operation was performed.
Various bad things cause this:
Something creates a signaling NaN -INF + INF 0 * (+-)INF (+-)INF / (+-)INF x % 0 (+-)INF % x x._rescale( non-integer ) sqrt(-x) , x > 0 0 0 x (non-integer) x ** (+-)INF An operand is invalid
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handle(context, *args)