Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 203792af50ad2f453f4e72e8d9f9cb580782d1a4ecbc4d2db8fb3522be01635c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^