Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2de3c5a44bd0f3cce51811ae7ba6201581d061248ba67bed332f8f92ccb12805:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^