How to enable error printing in magento?

"There has been an error processing your request

Exception printing is disabled by default for security reasons.

Error log record number: XXXXXXXXXXXX"

Solution:

Via file manager:
First of all, go to your root directory.
public_html/errors
Copy local.xml.sample to local.xml

Via SSH:
cd /home/webUser/public_html/errors
cp local.xml.sample local.xml

Refresh your website.