Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 026caecc9ef06d9a99a9208520180b6f59066df1bfc9f4b1feaa499cd7c0d139:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^