Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 106395cbb7bbc6f7ec53bd85f2e103225b6a91d159421f829c7f07db546ad23c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^