Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 012e3249d879aa3227a83f568ff7fd06eacba3f7ac013b6a16121b4105c2091c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^