Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 21a04de9c9532dfe6f9a84957ab8f6d85f5420542c99aa18e3ec7e1519e211f3:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^