Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e5f5b41ddbdef9a832b9ddf5128c3a98d794cdeb129709576b2f1c3363ddb773:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^