Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1bff20c8ff76f8aabb50d5f56971ab0f198137898c5da0bfda3bef3f80c213fb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^