Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 511deba7c755567ae97c3cf193a921921d5b1616e59cd1c0fa7c518ab73de064:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^