Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ed0064a44ca94793d9a987fc5f7514dd97ed4e2eea547a789cb31f7038be1397:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^