Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5f7253d2e26bb1add58ef8f6932c9fbd1f9b96b61c918a952d2c7027e214e534:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^