Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0ae20062c8326d614cba9603080c7e12d6e80785149b4f428f6baec24af8cf4a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^