Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c103473d765a6fe0f09cd32c78e22a13d1720b1f8cea5bcc8717545ab09f1d1f:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^