Mapserver Errors

Over the last while since rejoining CoX I've been having major problems with Mapserver errors. They seemed to have cleared up for a while, but now I can't finish an instance without an error occuring mid-mission (Or even just before the end of the mission) which is causing me a lot of aggrivation. I've been trying to allevate everything on my end (I'm told it's a result of extreme lag) but it's still an issue. Has anyone else had this same problem for the past while, and what's the best manner to combat it? And are the devs trying to fix it on their end?