Fatal error: Uncaught TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in /var/www/html/rss/reports/fpdf.php:526 Stack trace: #0 /var/www/html/rss/reports/fpdf.php(526): in_array() #1 /var/www/html/rss/reports/sal_slip.php(28): FPDF->SetFont() #2 /var/www/html/rss/reports/fpdf.php(348): PDF_MC_Table->Header() #3 /var/www/html/rss/reports/sal_slip.php(174): FPDF->AddPage() #4 {main} thrown in /var/www/html/rss/reports/fpdf.php on line 526