Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7e5e251a873da8e89cfba3320168ea6e99a11a95b404044c44838198f1ab90f1:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^