Error: Your upload path is not valid or does not exist: /app/wp-content/uploads<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /app/wp-content/plugins/smart-slider-3/Nextend/Framework/Filesystem/WordPress/WordPressFilesystem.php:34) in <b>/app/wp-includes/pluggable.php</b> on line <b>1331</b><br />
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<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /app/wp-content/plugins/smart-slider-3/Nextend/Framework/Filesystem/WordPress/WordPressFilesystem.php:34) in <b>/app/wp-includes/pluggable.php</b> on line <b>1334</b><br />