Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e2a91ec73a128dbe39b608824f3042614244ba2511cfebe850cb3e4e9dcd2bf4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^