Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4401b974fbf89458ec0640aec298d3618d781656be3e96a6058ad34fddeed4a5:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^