A little update of my own. We have a Windows server on Source Mod 1.1.2, Metamod 1.7.1 with nothing else installed. The only custom plugins for Source Mod that we are running is advertisements, web shortcuts, swear filter, and afk manager. We were getting crashes every few hours and had to remove pl maps because they crashed it immediately. I installed the plugin from the link below this morning, and we have not had a single crash since then in 12 hours. Hopefully this gets fixed on Valve's or Source Mod's end of things, but for now it seems that we are stable again using that plugin.
Kramer ...where did you install the files too on your server what folders SM or MM. The readme does not give any installation instructions with it. I'll give it a try.