Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 621c35c751789b02697f86599e16dc8fa5e83b85f5f2045a6e41ab0b52120dcf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^