Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9137aad64c31858b319717a1bf13a037abc89a880680f4bb8a6e6e3b4e6ab20f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^