Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 241027d638f85aa6373ce4e9d0d709eaa3ab98a0aa30aff5b1117d9d16970f9a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^