Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ca5bd140a61a80437bea6cc02c0a4f3d0e5d9118c8cdcc7e7a433daa516c900c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^