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<b>Deprecated</b>:  Optional parameter $decompress declared before required parameter $errorMsg is implicitly treated as a required parameter in <b>/www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/file/FileManager.inc.php</b> on line <b>574</b><br />
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<b>Deprecated</b>:  Optional parameter $userId declared before required parameter $notificationType is implicitly treated as a required parameter in <b>/www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/notification/PKPNotificationOperationManager.inc.php</b> on line <b>149</b><br />
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<b>Deprecated</b>:  Optional parameter $read declared before required parameter $userId is implicitly treated as a required parameter in <b>/www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/notification/NotificationDAO.inc.php</b> on line <b>258</b><br />
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<b>Fatal error</b>:  Uncaught ValueError: mb_substitute_character(): Argument #1 ($substitute_character) must be &quot;none&quot;, &quot;long&quot;, &quot;entity&quot; or a valid codepoint in /www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/core/PKPString.inc.php:71
Stack trace:
#0 /www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/core/PKPString.inc.php(71): mb_substitute_character()
#1 /www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/core/PKPApplication.inc.php(160): PKPString::init()
#2 /www/wwwroot/jurnal.uit.ac.id/classes/core/Application.inc.php(38): PKPApplication-&gt;__construct()
#3 /www/wwwroot/jurnal.uit.ac.id/lib/pkp/includes/bootstrap.inc.php(58): Application-&gt;__construct()
#4 /www/wwwroot/jurnal.uit.ac.id/index.php(65): require('...')
#5 {main}
  thrown in <b>/www/wwwroot/jurnal.uit.ac.id/lib/pkp/classes/core/PKPString.inc.php</b> on line <b>71</b><br />