Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4b2ea0b476d662fe09d8faf8785bd4f320e74cdc80c8a6b75b243628682c9f68:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^