Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8339375c7cac3c1e7ad06a73a49b74da3a35add5fcda8eef63680e1de720a2b9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^