Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4c484042da3aec038f0a074326b8aa339f20b434a388313535b2a706b0d3a1e2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^