Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 391d109a4871c98f8068e10528a739f0b31a11c0ecd8e1112e00b14e9fab61f5:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^