Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 75838dfaced914f58a355d8501d4de58f4b81868a8d19121baa5245e3d6e09d4:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^