Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 38c88be87a2e090ec1eb8ad8be65a31ffa605f4607d353f7b4d69fa537443706:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^