Contact
Corrections and enquiries.
Corrections
If a row here does not match the source package it cites, that is the most useful thing you can send. Say which page and which row, and it will be checked against the package.
When a figure turns out to be wrong, it is corrected in the data and the correction is recorded.
What this is not
This is not a support channel for your own systems. Questions about a particular machine belong with whoever runs it.