Two wordpress on deluxe hosting

Hi
I have two domains and one Deluxe hosting on godaddy.for e.g https://www.abc.com and https://www.def.com.I install https://www.abc.com on root directory with wordpress its working fine.and https://www.def.com in seperate directory with wordpress as a add-on domain But its not working even I can’t login to https://www.def.com’s wp also.pls help me

**used Cpanel for wordpress one click install

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