Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8ec4388ebfb65dacc3fc13711ed814844421b1ab207ec2c140576a2dbc4e59bd:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^