Site memory problems

Hello

A client's website that uses WPMU dev plugins was broken last night after we updated some plugins.

We temporarily resolved the issue deactivating plugins. However, this morning the full homepage was not showing.

It appears that the issue is related more towards a memory allocation problem in general. We deactivated all the plugins and it showed normally. We then reactivated each one and found that there was not a conflict with any particular plugin but instead the NUMBER of plugins activated. So it appears that if too many plugins are activated that the site cannot handle that.

Now we have only activated the necessary ones at the moment so that the site is functional.

Can you please take a look to the site? http://stonefamilychiropractic.com

Thanks
Cecilia