Installation of Custom ROM FAILED !! PLS HELP :( !

I am a user of Zte Blade Q Maxi device and i have rooted my phone with KingRoot (one-tap root) i wanted to install a custom rom and i found one for my device.when i press VOLUME UP + POWER BUTTON and i go to Recovery mode and when i select install from sd card i select my rom..after i click it it says Install /sdcard
Installation Aborted... Just that ! If anyone knows the problem pls help me ! Sorry for my bad English :(

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