Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c7873a1d4c75dedea8923650aa1b79f15a419e99e589aeefa843ac8b861f6281:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^