Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c5cee6b2d513fef4b2629616971f1ac9ad1b93ba247f964f70efa2ae9eda36ad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^