Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 28f42fc1292f3688be6e6a1b180caca2b611a4218fd85dd5d63d53bf2ab21095:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^