Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2a8b06826d5d1434cbb2ae34e2832c40a1e2550946f0278f3644f55c1a12e54a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^