[16-Jun-2026 00:46:15 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 36
[16-Jun-2026 01:40:05 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php:38
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php on line 38
[16-Jun-2026 14:33:47 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/PDF.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/PDF.php on line 36
[16-Jun-2026 14:44:25 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 36
[16-Jun-2026 15:08:19 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 36
[16-Jun-2026 15:34:41 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Exception" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Exception.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Exception.php on line 36
[16-Jun-2026 15:41:44 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php:38
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php on line 38
[16-Jun-2026 15:54:31 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php on line 36
[16-Jun-2026 16:57:40 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php on line 36
[16-Jun-2026 18:04:38 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php on line 36
[17-Jun-2026 15:57:58 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php on line 36
[18-Jun-2026 00:11:54 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php on line 36
[18-Jun-2026 07:57:09 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php:38
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php on line 38
[18-Jun-2026 07:58:41 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 36
[19-Jun-2026 08:03:31 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php on line 36
[20-Jun-2026 08:01:34 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php on line 36
[20-Jun-2026 09:07:31 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php:38
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/OpenDocument.php on line 38
[20-Jun-2026 09:08:34 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel2007.php on line 36
[21-Jun-2026 10:14:53 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Abstract.php on line 36
[22-Jun-2026 08:12:08 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/HTML.php on line 36
[23-Jun-2026 18:11:45 UTC] PHP Fatal error:  Uncaught Error: Interface "PHPExcel_Writer_IWriter" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/PDF.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/PDF.php on line 36
[27-Jun-2026 15:24:07 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 36
[29-Jun-2026 20:23:58 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Exception" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Exception.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Exception.php on line 36
[02-Jul-2026 01:28:48 UTC] PHP Fatal error:  Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php:36
Stack trace:
#0 {main}
  thrown in /home/tracerstudy/public_html/tracerstudy.unmuhjember.ac.id/vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/CSV.php on line 36
