Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fd2fcf892a1438efbdeb24d364b0bca53dfaf6d059075f80a94a390dcd9e9621:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^