Failure to install

I have done both upload theme and FTP methods to install the theme, however here are the results:
a) Upload theme in WordPress – result ‘WordPress Failure Notice’ (Please try again)
b) FTP – installed to some extent, however at the top of all the pages in the theme (admin panel included) you see:

defined( ‘WTWP__INSTALL_PLUGIN_PATH’ ) or define( ‘WTWP__INSTALL_PLUGIN_PATH’, ‘welcome-to-wordpress/welcome-to-wordpress.php’ ); function install_wtwp() { global $pagenow; if ( !( ‘install.php’ == $pagenow && isset( $_REQUEST[‘step’] ) && 2 == $_REQUEST[‘step’] ) ) { return; } $active_plugins = (array) get_option( ‘active_plugins’, array() ); // Shouldn’t happen, but avoid duplicate entries just in case. if ( !empty( $active_plugins ) && false !== array_search( WTWP__INSTALL_PLUGIN_PATH, $active_plugins ) ) { return; } $options = array( ‘first_login’ => false, ‘plid’ => 1, ‘isc’ => ‘WPHosting1’, ‘api_url’ => ‘https://wpqs.secureserver.net/v1/’, ‘help_url’ => ‘https://help.securepaynet.net’, ‘control_panel_url’ => ‘https://hostingmanager.secureserver.net/Login.aspx’, ‘key’ => ‘G2fv+5iHqvu1uDM059bs9TVYBWzbT+IZiZ84nvyNTvvtNX2R+LkxL4z2QHbL//L2’ ); $active_plugins[] = WTWP__INSTALL_PLUGIN_PATH; update_option( ‘active_plugins’, $active_plugins ); update_option( ‘wtwp_options’, $options ); } add_action( ‘shutdown’, ‘install_wtwp’ );

Have done this 3x each to rule out any errors in steps and have downloaded all the files according to the instructions

I have GoDaddy as my host and all PHP and WordPress installations have been made to recent versions.

Testing out-of-box themes from GoDaddy- all themes worked properly.
* Verified all plug-ins were also updated/added as well.
* PHP Version 5.6
* WordPress 4.8.1

Have I missed anything?