Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1e1f5c50f1e041b8489e82f2c8eef75f0d028042d56659432dcef514f6a395ec:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^