Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9160d1d1abacc5f6bff0284d42345b143be430bdc160893a1f5698f56acfab01:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^