Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f3c69bbad8ab0122b902c2e78e2a1757c6a73a06b0549329fe220baa17b1e04c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^