Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8c6616544ed7f861bb0e947f07e9de5646a1920a967fe0c0a9e66221457423f8:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^