Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9c01ccb5398afffc7e98963462478c7784dae79d3cfd8a9ff43980f9738bbf25:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^