Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0231f8fb2cf337a08f1f02091cde2914cfbabb8bc91b7368ceed7c5ae2c17512:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^