Thanks for getting back to me. Is there a standardised memory limit for PHP. I've resized the files and used compressed versions, but i still see the same error. My hosting provider has come back with the following feedback any additional thoughts:
2) Internal Error 500) The error logs show the following: [Tue Oct 11 09:06:57 2016] [error] [client 199.16.156.125:53266] Script timed out before returning headers: index.php[Tue Oct 11 09:07:04 2016] [warn] [client 199.16.156.125:56282] AH01220: Timeout waiting for output fromCGI script /home/sites/public_html/index.php[Tue Oct 11 09:07:04 2016] [error] [client 199.16.156.125:56282] Script timed out before returning headers: index.php[Tue Oct 11 09:11:57 2016] [warn] [client 199.16.156.125:53266] AH01220: Timeout waiting for output fromCGI script /home/sites/public_html/index.php[Tue Oct 11 09:12:04 2016] [warn] [client 199.16.156.125:56282] AH01220: Timeout waiting for output fromCGI script /home/sites/public_html/index.phpWhy the site is taking so long to run the script, I'm unable to see why - but we cut off scripts from running longer than 30 seconds. This isn't something we're able to bypass. If the image you're trying to upload is rather large, it could be taking a while for the CMS to process it which is why it fails.