Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9b4fdb96ba2fe0ded5399ddb92cebdc01603482f508a711f2fedce4484bcf1af:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^