Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1de73eba3387e01ed50c7424b1d7725db3475d365aa2178d98a148a9eec8fce7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^