Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7071b89e9a5aea588dd06ed810eb26db8fa2b8c0f98c30b9eb2b2d3bfda388c9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^