Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5cf9b189c1f5b396e0b55d2358b03654745005dc3ce5c8a37c9873f6bd0fa848:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^