Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7ffd7b6b527ddf8a43729a131150b89058b73077a7198efd5bd7b724373dae40:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^