If that does not resolve the issue, try switching to the Twenty Seventeen theme to rule-out a theme-specific issue. If you don’t have access to your Dashboard, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue.
If that does not resolve the issue, it’s possible that a .htaccess rule could be the source of the problem. To check for this, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, and rename the .htaccess file. If you can’t find a .htaccess file, make sure that you have set your SFTP or FTP client to view invisible files.
If you weren’t able to resolve the issue by either resetting your plugins and theme or renaming your .htaccess file, we may be able to help, but we’ll need a more detailed error message. Internal server errors are usually described in more detail in the server error log. If you have access to your server error log, generate the error again, note the date and time, then immediately check your server error log for any errors that occurred during that specific time period. If you don’t have access to your server error log, ask your hosting provider to look for you.
]]>[07-Dec-2018 11:31:30 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:31:46 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:32:31 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:35:23 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:35:27 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:40:25 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:41:17 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:41:20 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:41:43 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 11:41:45 UTC] PHP Fatal error: Cannot redeclare has_block() (previously declared in /home/tutorial/public_html/wp-includes/blocks.php:81) in /home/tutorial/public_html/wp-content/plugins/multiple-content-blocks/assets/inc/template-tags.php on line 67
[07-Dec-2018 16:49:23 UTC] PHP Fatal error: Class ‘WP_Block_Type_Registry’ not found in /home/tutorial/public_html/wp-includes/script-loader.php on line 2421
[07-Dec-2018 16:50:18 UTC] PHP Fatal error: Class ‘WP_Block_Type_Registry’ not found in /home/tutorial/public_html/wp-includes/script-loader.php on line 2421
[07-Dec-2018 16:50:34 UTC] PHP Fatal error: Class ‘WP_Block_Type_Registry’ not found in /home/tutorial/public_html/wp-includes/script-loader.php on line 2421
[07-Dec-2018 16:51:32 UTC] PHP Fatal error: Class ‘WP_Block_Type_Registry’ not found in /home/tutorial/public_html/wp-includes/script-loader.php on line 2421
How do I resolve this
]]>Do you still have the same problem if you switch to the Twenty Nineteen theme?
]]>Also, the error persists on switching to the Twenty Nineteen theme?
]]>Some uploaders tend to be unreliable when overwriting files, so don’t forget to delete the original files before replacing them.
]]>I have tried disabling all plugins, change theme to twentyseventeen and twentynineteen and back, manually replaced the wp-includes, and wp-admin, manually reloaded the Enfold theme we are using, used a filter in the functions to disable gutenberg, used a plugin to disable gutenberg, put a small php file in the root to make sure it’s not a hosting problem, renamed the .htaccess file.
I’m a little stumped. The necessity of a hard-refresh seems to have something to do with a cached file problem, but I can’t think what it could be. I’ve never had this kind of consistent 500 server error that could switch on and off.
]]>Then, start your own thread with further details: https://www.ads-software.com/support/forum/how-to-and-troubleshooting/?view=all#new-topic-0
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