Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ec3135f83189ac41ec2291e4d1b83a7a42d0035df11af2f365e6366f54bbd03c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^