Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1b51e22064280533f6b6fffccf1d6a774e2949ba3479a83ab40701cd15f91d9e:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^