Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1012bedc1cde78b7b321d6baaeb0192f7f6bebd87dc42a078bb0351b472b566e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^