Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 18172d49c635fce3829014d8192c3aceed4e1975403364b886c07713c90c078e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^