Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8a5008d892906fdea2db4fb80425b8b74a69f6a8a1c5256b562bd58b5aea33a8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^