Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2ae0ddd2fe79a5f6e489740cb1d8945f1c7f79c724e5d8a1591954d6c4d44326:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^