Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b853aecf5cdf363ab91ba3b13a774edcf218d637d6a7b19bb80aec6237541fef:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^