Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 669a3cc0490688dfb6dcfb01f8104ecec65fd07cbb7fc147f363496816c2c68b:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^