Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5371055d7f83c37aa7bae2109d79d2f69a692294c221b6a4e046ea3e4dd654e8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^