Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1f828b4da04add5a223bcfc1497b8158f8a8b28404a95bf11d15d54b422fddbe:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^