Can't install the betheme parent in my wordpress

Monoct

it keeps appear "are you sure you want to do this? please try again" when I was installing the betheme parent. Help. 

Albert

http://forum.muffingroup.com/betheme/discussion/968/what-to-do-when-you-get-are-you-sure-you-want-to-do-this-please-try-again-while-installation

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