Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e58c563a7d5e6d5c9b4256ff76715d34aba9f28776510a99699f3f6f614e772b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^