Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2f7c9de2b578009354fc5f22af531aaa389141554cd9702d6b6c5a0b06cecb36:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^