Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c57933373c107d1ad70141340fc7f0cf49e81cfe3eea2d3449a9f29748e8f2a2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^