Can't get the client page to load...

Hi, I was getting an out of ram error so added define( 'WP_MEMORY_LIMIT', '256M' );
to my wp_config file - that didn't solve anything. I then created a .user.ini file (I'm hosted on a GoDaddy Managed Wordpress server) and added the line: memory_limit = 128M After uploading that, I'm now getting a "Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later."
error message.

Not quite sure what to try next! Also not entirely sure I created the .user.ini file correctly as searched for one on the server but couldn't see one so created it and put it in the same folder as the wp_config file.