Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6adc5ff9c07bb1feb710c36a02a1926ef9ad04b090410670d52f8c1146ad47bd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^