Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 05147f5ec8e47f9f9be52985d9ab150ba99739b1b5c706fe5a1b36507e2b7773:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^