Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 97680b35031ec7d40aff593c2918d8cff2ccda0dbb702bc60387d282260952a0:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^