Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 9b3792521da00bc8aa7a38bb7b1e193ed8a878e49e1053d517afcdfc1136e8fd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^