Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e1b5efe9be93002a77e8866bea24f2a0533753e5948c6fe283130559ace341ad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^