Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7bf982233f07cc242904dcce81b73a57254f65128584548808adac3b4c1e7f1a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^