Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6d899dcc30c0d601404b5738a4abbea1c2234974e56dc0b105beb55e606dad1f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^