Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> da39009b6d8ada67deccf936cb1fabcfa56a41d37453ad1bfd98d4f38b672d11:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^