Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 689dce3f9bba2b781ac603ca0bc89c0f7cc76e19afcc8c46d013ec11d6102e09:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^