Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 42d825365ef0205ea8a0a7d998a29b9949163849fb0f7e09e9b93cb669bb765a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^