Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6b2eb1bd5bca91f08bfff71d742ae4eaa97c5dceecd48c00baca2634f293fb56:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^