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wpForo 1.x.x Blank page

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tfindlay
Posts: 2
Topic starter
(@tfindlay)
New Member
Joined: 4 years ago

If a user logs in or logs out a blank page comes up. How can I fix this? New users will be confused.

4 Replies
Anonymous20
Posts: 1602
(@anonymous20)
Noble Member
Joined: 6 years ago

Look like a white screen of death as we call it in Wordpress.

A fatal error. Enable Wordpress debug to a log and check the log.

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Robert
Posts: 9358
Admin
(@robert)
Support Team
Joined: 6 years ago

Please navigate to Dashboard > Forums > Tools > Debug Tab > Errors & Issues Sub Tab and check errors. If you see some Errors please let us know.

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1 Reply
tfindlay
(@tfindlay)
Joined: 4 years ago

New Member
Posts: 2

Robert, I did as you directed and here are the most recent error messages:

Error Log File: /home/tfindlay/public_html/error_log

  • [20-Oct-2018 22:14:13 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:14:09 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:13:49 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:13:40 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:12:47 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/pluggable.php on line 1219
  • [20-Oct-2018 22:12:47 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:12:44 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:12:44 UTC] PHP Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:12:33 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:12:28 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:12:20 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:12:17 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:12:13 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:11:38 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:11:26 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:11:16 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:08:47 UTC] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-includes/load.php on line 154
  • [20-Oct-2018 22:08:46 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:08:46 UTC] PHP Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:08:45 UTC] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
  • [20-Oct-2018 22:08:45 UTC] PHP Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/tfindlay/public_html/index.php:1) in /home/tfindlay/public_html/wp-content/plugins/wp-file-upload/wordpress_file_upload.php on line 2
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Robert
Posts: 9358
Admin
(@robert)
Support Team
Joined: 6 years ago

As you can see in error messages it says error comes from wp-file-upload plugin. Please disable that plugin, delete all caches and test it again. Then contact to that plugin support to fix this issue. You probably have other errors from other plugins, because the listed errors are result from other errors.

You can disable other plugins and check those enabling them one by one and find the problem maker. These errors doesn't come from wpForo. However they affect WordPress redirection function used by wpForo on logout process.

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