Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bea8a20fc48e54a25bf993c59ad1c11f2d53f070572e12103936b22e0f9ce9ae:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^