Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4e48cab5e506b252b7ab0e60d6321e3de86bd77427bd10af821426a771c3b231:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^