Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 701201b9160511dc1ddd6458cdbeefa2b03b0cd73215597e91fee8675e1e9ccc:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^