Notice: Undefined variable: commentsForPDF in /var/www/html/wiki/extensions/PdfBook/PdfBookAction.php on line 135

Warning: file_put_contents(/var/www/html/wiki/images/pdf-book660532a07c229): failed to open stream: Permission denied in /var/www/html/wiki/extensions/PdfBook/PdfBookAction.php on line 146

Warning: unlink(/var/www/html/wiki/images/pdf-book660532a07c229): No such file or directory in /var/www/html/wiki/extensions/PdfBook/PdfBookAction.php on line 163

Warning: readfile(/var/www/html/wiki/images/pdf-book-cache-88fdbdbc24097210fb008d59c839db3e): failed to open stream: No such file or directory in /var/www/html/wiki/extensions/PdfBook/PdfBookAction.php on line 177