Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0e68ac61509421bd9e23c2154cb1ada054bde3103534112d0f5228c7b0d36f3e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^