Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 218673cd8f45944b6e271b9cc8c091a50e44979a2091d5026d3f22bd35f240e0:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^