Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> df09d0d2bae4c6571681c0fcce0a75df84c09b6f25d10d51b5704e82f7cd2bde:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^