Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aa27fcd0ae3fd84d16e1d880bae26db0236a2a188a994d178899136cccef6d20:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^