Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7f2102330beb9d8859d380c64ae725cd786c149e6e3c36672053c7d5ea6e80fc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^