Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6f2cfe1477967416d0469c73152eebe7720d34fa0e1979d588953c36876bec30:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^