CRASH - But only one single map, and NO error!

[plutomaniac]

ERROR: Couldn't load language file 'custom_stories/The Hallway/extra_english.lang'
WARNING: Could not find language file category 'CustomStoryMain'
WARNING: No resources element found in 'custom_stories/Rokotains Mansion - Full Version/extra_english.lang'

-------- Loading map 'Rokotain_Mansion_Studium.map' ---------

ERROR: Could not open binary file 'C:/Program Files (x86)/Amnesia - The Dark Descent/redist/custom_stories/Rokotains Mansion - Full Version/maps/Rokotain_Mansion_Studium.map_cache'
ERROR: Could not map cache file 'C:/Program Files (x86)/Amnesia - The Dark Descent/redist/custom_stories/Rokotains Mansion - Full Version/maps/Rokotain_Mansion_Studium.map'.

First, fix the language problem that you have and described in the error above. Then, go to C:\Users\--YOUR-USER-NAME--\AppData\Local\VirtualStore\Program Files\Amnesia - The Dark Descent\ and in there you should find the "missing" files. Next time, make sure you always run the editors as administrator.