Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e3e33cfefb4e0511acb218f620eac961d34d74d337841e4ad3d32e8d155dc55a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^