Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bbc66262f9e883493f8f81dff24a1796af7e57e7ffcb1abe3a72a3e66a68de4f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^