Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b383394f08d6960dcd40f712ffca8e38f174eb41fc90f20ec4df839abef503e3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^