PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in D:\web\localuser\fatecguaratingueta\www\revista\plugins\generic\googleScholar\GoogleScholarPlugin.php on line 117 PHP Deprecated: htmlspecialchars(): Passing null to parameter #1 ($string) of type string is deprecated in D:\web\localuser\fatecguaratingueta\www\revista\plugins\generic\googleScholar\GoogleScholarPlugin.php on line 117