Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ec7739bfb87b8783c629478073d869d42b059684490023035dd263a43788cf80:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^