Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f2626116885462d3971b5242eed92ec9e192a66b4256d2191462a7826b9859d8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^