Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5bcefefde7a69955087ab9436eb34e0b806bcb94fd453f5654230fa37c84eca1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^