Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 55b418b7732c9f805c891407bb597d71b7b05728fdf5b7cceaace565103e459e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^