Delete module by accident - SOLVED - Joomla! Forum - community, help and support

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i deleted module site module instead of installer stupidity  ;d.  second mistake unistall module installer.  got error message "fail" module disappears module installer. 

i tried reinstall module kept getting message there still module modules/mod_xxx.php.  tried deleted module files /modules directory not let me.  have backup files , database.  can please tell me how or reinstall module back?  thanks.






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