Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 386d3d3957e3ea27f18a18246b34e0b50f168515242d6ea4ce5a6d7eec2a512a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^