Fatal error: Uncaught Error: Class 'IntlDateFormatter' not found in C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\php81_bc\strftime\src\php-8.1-strftime.php:60 Stack trace: #0 C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\php81_bc\strftime\src\php-8.1-strftime.php(201): PHP81_BC\{closure}(Object(DateTime), '%B') #1 [internal function]: PHP81_BC\{closure}(Array) #2 C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\php81_bc\strftime\src\php-8.1-strftime.php(180): preg_replace_callback('/(?<!%)%([_#-]?...', Object(Closure), ' 6 %B %Y') #3 C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\smarty\smarty\libs\plugins\modifier.date_format.php(85): PHP81_BC\strftime(' 6 %B %Y', Object(DateTime)) #4 C:\xampp\htdocs\ojs-3.3.0-22\cache\t_compile\76fec2d61601487196fd6d4a69f60477fe9d5e86^76fff36eb9266526c126f50cb644284e7daeb946_0.plugins-35-plugins-generic-pdfJsViewer-generic-pdfJsViewer.submissionGalley.tpl.php(39): smarty_modifier_date_format('2025-12-06', ' 6 %B %Y') #5 C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\smarty\smarty\ in C:\xampp\htdocs\ojs-3.3.0-22\lib\pkp\lib\vendor\php81_bc\strftime\src\php-8.1-strftime.php on line 60