Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 35cc409a14f0fd109086106dabde408229afb4c7cd6a1f1dddcf4f7d81dbb665:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^