Failed Media Upload

Here’s what I’m sure is an oldie but a goodie, but I can’t seem to find this in the forums.
Upon trying to upload photos (.png’s & .jpg’s, well under the 2 MB limit) it crunches them, tells me there was error then gives me the message:

“The uploaded file could not be moved to /var/www/vhosts/tier1group.com/subdomains/wordpress/httpdocs/wp-content/uploads.”

What’s my solution?