First off, sorry for the Attn Caridad – The only reason it is for her attention is because she knows the site best (apart from Emerson). However, if this post is better suited for someone else, please feel free.
For a couple of months now (coinciding with the release of Views 1.4 and Types 1.5 and also the release of WPML) we have had issues with our server running out of RAM. This has happened 3 times since November, and despite doubling our RAM (we are on a 6GB dedicated server) we just had another outage today. Our hosting company is suggesting we have a code optimization issue within our services. In the meantime, we will also be running a server audit to make sure the server has not been compromised.
However, the larger probability is that we have a leaking script or some other leakage in wordpress. Since Toolset/ WPML is the major and main plugin we have it is best to ask your help first. So, is there any way we can have some assistance trying to find this leak if its from toolset/wpml?