Problems after installing DayZ (crashes and saves)

[Puerr92 0]

Hello everyone, yesterday I downloaded Dayz with Six Updater. When I start the mod I can play without problems, but if I go to a mission of ArmA 2 campaign the game crashes, or I load the mission, but shows a static image of a portion of the map. The strange thing is that when the mod was not installed these problems did not happen, and if I reinstall the game without the mod everything returns to normal.

Could someone help me?