Google Play store download error topic

Whenever I try to download some large apps from the play store ,they are stuck in between.
Google play shows no error , they are just stuck the notification goes away too but the play store shows still downloading.I have attached a screenshot below.

I am using Carbon rom (Port on Htc Explorer);Android 4.3.1 and in2ext script.
Play store version : 4.5.10

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