Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 89e7d38e9c55f8ec73fa1d63d54da904cd1940437bd80344f35c9072373c4aa3:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^