Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5bea92cfde436fe013ab62abaa1aeb527db50282fc71a4bf1d543a613b55179e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^