Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 81e159e346d0a2282b4f5d8aa47200bdbc4cd713c85225f67013055332dd272f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^