Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d1ecf9185b49a775f9e023ae440d76546a2dc1688030dd1bb3d7badf9b8a89d8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^