Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 407125e33a4a39dfe16f20edbfe8081a9bdd01a71a5a69e07d45c15d7603cee3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^