Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 97f883e6489cc32249cdafb326fe1c9478f57f379fad1109d72e82f1cdad435e:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^