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how to fix
Warning: require_once(/var/zpanel/hostdata/zadmin/public_html/batikabaz_com/system/startup.php): failed to open stream: No such file or directory in C:\xampp\htdocs\batikabaz_com\index.php on line 17
Fatal error: require_once(): Failed opening required '/var/zpanel/hostdata/zadmin/public_html/batikabaz_com/system/startup.php' (include_path='C:\xampp\php\PEAR') in C:\xampp\htdocs\batikabaz_com\index.php on line 17
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You could construct the path relative to current directory, like this:
require_once(__DIR__. '/system/startup.php');