Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b906be86fa105de031d05f2dbec6c158c1bcd31d9759391a554fc047c3faa329:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^