The message show error with solution clearly so we have to check the memory space allocated for "Max cPanel process memory" in tweak settings,


The entire verbose build output is available in /usr/local/cpanel/logs/easy/apache/build.1394457074

 If the server does not have enough memory to run the build via a browser (IE if you get "Out of memory" errors below) then you will have to do the build via command line with /scripts/easyapache.


Login into your WHM Panel and select : tweak settings ->

find and increase ram space atleast 512MB,
Max cPanel process memory (Minimum: 512):  512


Try to build using a shell script:
#  /scripts/easyapache