Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3b3d69c9a14c5f12adfbcebcfe8b166d57444dc06a7b87e08d35e5292bb40642:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^