Hello and thank you for your fast response. We upped the max memory to 512
M but that did not resolve the issue. I think we need to go to the next step that you suggested.
It looks like this message is generated by some other plugin or maybe "auto-suggestion" feature of the theme. Could you try to check if there is an option in the theme settings or some AJAX Search plugin? Could you try to disable it?
Thank you for this report!