Bought a weird ceramic jar at a spring estate sale. It has a lid with a finger sized hole in the center and hand painted flowers. No smells, completel. Full article 👇

If the error message states: Warning: Cannot modify header information – headers already sent by (output started at /path/blog/wp-config.php:34) in /path/blog/wp-login.php on line 42, then the problem is at line #34 of wp-config.php, not line #42 of wp-login.php. In this scenario, line #42 of wp-login.php is the victim. It is being affected by the excess whitespace at line #34 of wp-config.php.

If the error message states: Warning: Cannot modify header information – headers already sent by (output started at /path/wp-admin/admin-header.php:8) in /path/wp-admin/post.php on line 569, then the problem is at line #8 of admin-header.php, not line #569 of post.php. In this scenario, line #569 of post.php is the victim. It is being affected by the excess whitespace at line #8 of admin-header.php.

Why doesn’t my “Publish” or “Save Draft” button work?
To resolve this and similar issues, disable your plugins one at a time until you find the source of the issue. Generally, this will be due to two or more plugins trying to use the same resources (for example, JQuery or other Java-based tools).

In addition, it could be that there is a problem with your browser. A common resolution is to empty the browser’s cache. Please consult the documentation for your preferred browser to learn how to do this.

How to fix 404 error when using Pretty Permalinks?
If an error 404 occurs when using the Pretty Permalink choices such as Day and Name in Administration > Settings > Settings_Permalinks_Screen it could be a result of the mod_rewrite module not being activated/installed. The solution is to activate mod_rewrite for the Apache web-server. Check the apache\conf\httpd.conf file for the line # LoadModule rewrite_module modules/mod_rewrite.so
and delete the # in front of the line. Then stop Apache and start it again. Note: you may have to ask your host to activate mod_rewrite.

See also Using Permalinks. Relevant discussion thread is https://wordpress.org/support/topic/234726

Why isn’t the admin user listed as an author when editing posts?
Not sure why this problem happens, but here’s a couple of things to try one of these two solutions.

This usually fixes the problem:

Create new admin user (e.g. newadmin) with Administrator Role
Login as ‘newadmin’
Degrade the old ‘admin’ user to Role of Subscriber and Save
Promote the old ‘admin’ back to Administrator Role and Save
Login as the old ‘admin’
If that doesn’t work, try:

Create a new admin user (e.g. newadmin) with Administrator Role
Login as ‘newadmin’
Delete the old ‘admin’ user and assign any posts to ‘newadmin’
Create ‘admin’ user with Administrator Role
Login as ‘admin’
Delete ‘newadmin’ user and assign posts to ‘admin’
Why is the wrong author name displayed for a post on a blog?
This problem is usually solved by the same solution as is presented in the question right before this one:
Why isn’t the admin user listed as an author when editing posts?

How do I find more help?
There are various resources that will help you find more help with WordPress, in addition to these FAQ.

Troubleshooting
Finding WordPress Help
Using the Support Forums
Resources and Technical Articles about WordPress
Installation Problems
Important: Please note that this is not a support page. If you seek help with your specific problem, please refer to the Support forums.