Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e117ae13d32288db98caad560aadb1a336592989b6501f5ab590f6059d5f9e99:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^