Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7781662401a5f8140922626af0652feae1ab1c8109a51f8f75b8f2404cfece47:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^