Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ccc4fffe823f4ca0c2e30c410413e715b3b45f1d4419222ddff8e11d2befdc8d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^