MAKE SURE THE ROM YOU ARE INSTALLING IS COMPATIBLE WITH YOUR ANDROID DEVICE INSTALLING WRONG ROM CAN BRICK YOUR DEVICE!
Step 1. Click on Wipe, select advance wipe
Tick the Dalvik cache, System, Data and Cache.
Step 2. Press back key and Click ON Reboot
Then select Recovery
Step 3. Now your Mobile will be again Boot in Recovery Mode.
Step 4. Again Choose Rom Which you Want to Install, This Time Your Rom be Successfully Installed.
Done 😉