Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a2699d2407b947d124c8c6b04f605ec7fcf68c7d606804acc2f8493a168dffcb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^