Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0e8bb547781fa4ccc598e9e4daceaaacf2560327f94adace351a3dcd46cf90a6:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^