Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 31a373814fbdd1d059732e7e89f4ff354be50c57f745251fefb3843d37a0fd25:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^