Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 859be20060c982b18b465d212e9321a916c8bba1cd7f045da55a644fd3238fa5:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^