Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e189cf9a75553b922cbe58bbbb78d2529b5a088a5fd9f854fce378f6a69c2dcd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^