Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> dde457203ada85743f3bd7278ef0a48f7cae7a6ec853a885edf2b1fc0f92bceb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^