Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1e4f0b6101a87224978f7e2cb10e66918df81e764a20c52d8d75419a24583abb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^