Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c4102ed5f75f6f519ab331a1880c0a0dd5993b8224786773e6309778daef6f88:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^