Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 30c9afceda57e5091c5d009bd007e0a27e20c16cfbcb62deb46b7b0253b7aa62:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^