Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 911affa8be270f57f4b4c5ff6ad82badb6ef2b77e989a3accb8a464ccc5164c2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^