Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aba76c3e849d4677bce0d025d35d047405e673767d05a09868673fd9570ad732:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^