Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> addaef828d3ca2737b5a6de8f93a821b71cffa9f21c8bac9e6f7d106f43d55a7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^