Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 579b21b132c033e6868faf1d16da2cea3db95a45efe9d0edab19563fe8ef1634:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^