Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f8b6b2668858d5833774bd9dbd831b09b6063032306e6fafaeec67f3b3bd3fb1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^