Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4dac2ff279dbff8a08843f843fcdad07c30162b8a2d899d75c84f4a4f8cb79c8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^