I have a WordPress 4.7.5 installation, which is giving me this error:
Cannot modify header information - headers already sent by (output started at xxxxxxxxx\wp-includes\script-loader.php:1328) in
xxxxxxxwp-includes\rest-api.php on line 513
And in my traffic stats, I see a lot of reports of page loading delays.
I looked for solutions and tried them all, even replacing those 2 files with new versions, but the warning stays. I don't know what else to do.
Any ideas?
This is the site: https://lalulula.tv/
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I'm using a WordPress site, recently I had to update my site to WordPress 4.6.2. And now I'm experiencing an error. Can anyone help me out with this? check out the image for the error message:
Warning: base64_decode() has been disabled for security reasons in
/home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php
on line 270
Warning: base64_decode() has been disabled for security reasons in
/home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php
on line 274
Warning: session_start(): Cannot send session cookie - headers already
sent by (output started at
/home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php:270)
in
/home/play2daa/public_html/wp-content/plugins/tawkto-live-chat/tawkto.php
on line 44
Warning: session_start(): Cannot send session cache limiter - headers
already sent (output started at
/home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php:270)
in
/home/play2daa/public_html/wp-content/plugins/tawkto-live-chat/tawkto.php
on line 44
Warning: Cannot modify header information - headers already sent by
(output started at
/home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php:270)
in /home/play2daa/public_html/wp-includes/pluggable.php on line 1174
With respect, this question could be handled by reading the error messages carefully. The people who developed PHP went to a lot of trouble to make their messages informative.
The first two error messages in your question tell the story. They're pretty much the same fault.
Warning: base64_decode() has been disabled for security reasons in /home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php on line 270
Let's parse this message.
base64_decode is a php function. Type php base64_decode into your fav search engine to learn more.
base64_decode() has been disabled for security reasons is the error message. Try typing that into a search engine to learn more.
in /home/play2daa/public_html/wp-content/plugins/postman-smtp/Postman/PostmanOptions.php on line 270 tells you where the problem occurred. Look! it says .../plugins/postman-smtp/... in the path name! It seems likely you have a WordPress plugin called Postman SMTP or maybe Postman in your WP install. Have you contacted that plugin's developer to figure out what to do?
Here's the thing: Lots of cybercriminals have figured out how to trick various WordPress plugins into running malicious code by concealing it in base-64 encoded text and uploading it. So, some cheap and nasty hosting services have blocked the PHP call that decodes that kind of text, in an attempt to slow down those miscreants.
You can fix this problem by....
getting the plugin developer to issue an update, or repairing the plugin yourself if you're a developer.
finding a different plugin to send email from your site.
getting your hosting service to re-enable this disabled function.
firing your hosting service and getting a new one.
I've been left scratching my head this evening. I have a site on a localhost that is working fine, however now when I am trying to migrate it to a live host I'm getting a few issues.
Along with the White Screen of Death, the 3 error messages that are currently coming up look like the following:
Strict Standards: Declaration of uncode_slider::contentAdmin() should be compatible with WPBakeryShortCode::contentAdmin($atts, $content = NULL) in /home/website/public_html/wordpress/wp-content/plugins/uncode-core/vc_extend/init.php on line 631
Warning: Cannot modify header information - headers already sent by (output started at /home/website/public_html/wordpress/wp-content/plugins/uncode-core/vc_extend/init.php:631) in /home/website/public_html/wordpress/wp-login.php on line 390
Warning: Cannot modify header information - headers already sent by (output started at /home/website/public_html/wordpress/wp-content/plugins/uncode-core/vc_extend/init.php:631) in /home/website/public_html/wordpress/wp-login.php on line 403
I've just looking for other questions/answers but can't seem to get the fix.
It seems the 2 elements clashing are my theme (UnCode) and the Visual Composer plugin. Just wondering if anyone has encountered this before and how I can hopefully get around this without having to forfeit the theme or plugin. It works perfectly locally!
First check your database under wp_options and check that you have changed siteurl and home to the new url.
Try to deactivate your plugins by renaming them in plugins folder until you can access the wp-admin page.
Then go to Settings -> Permalinks and click Save Changes.
Can someone help me?
I just downloaded and installed WordPress, then I installed the Rumba theme. I want to start working on the site but I keep getting this error message no matter what I try to save, and also when I just try to visit the site.
Warning: Cannot modify header information - headers already sent by (output started at /var/www/socialworkshop.dk/public_html/wp-content/themes/rambo/functions/woo/woocommerce.php:2) in /var/www/socialworkshop.dk/public_html/wp-includes/pluggable.php on line 1178
Just write on top of page /var/www/socialworkshop.dk/public_html/wp-content/themes/rambo/functions/woo/woocommerce.php
and on /var/www/socialworkshop.dk/public_html/wp-includes/pluggable.php
This question already has answers here:
How to fix "Headers already sent" error in PHP
(11 answers)
Closed 8 years ago.
I just migrated a wordpress site from a local xampp server running on my Windows 8 PC to a cpanel hosting account which I use to host a few other sites.
Post migration the site seemed to be working well, until I tried saving a page in the wordpress admin. Upon saving, I encountered the error message shown further down the page.
I have attempted to troubleshoot to the best of my ability, including following the steps on the wordpress site for this particular error. So far, to no avail.
If I disable the nextgen gallery plugin, the problem goes away. I require the plugin to display images on the site though, so it's not a solution.
Interestingly enough, the changes do get saved, despite the error.
If anyone can help me figure out this problem I will be forever grateful!
Many thanks
Warning: preg_match() expects parameter 2 to be string, array given in
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_resource_manager.php
on line 36
Warning: strpos() expects parameter 1 to be string, array given in
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/ngglegacy/admin/admin.php on line 63 Warning: Cannot modify header information - headers
already sent by (output started at
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_resource_manager.php:1)
in
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/frame_communication/class.frame_event_publisher.php
on line 74
Warning: Cannot modify header information - headers already sent by
(output started at
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_resource_manager.php:1)
in /home/ascothou/public_html/wp-admin/post.php on line 222
Warning: Cannot modify header information - headers already sent by
(output started at
/home/ascothou/public_html/wp-content/plugins/nextgen-gallery/non_pope/class.photocrati_resource_manager.php:1)
in /home/ascothou/public_html/wp-includes/pluggable.php on line 899
2 possible reasons.
You screwed that page up, and PHP generates warnings (which you have seen), and then the warnings are printed to the browser, which prevents the headers being modified.
You saved the page with UTF-8 BOM, which is sent to browser before the header modification.
More like the 1st reason.
I use shoppica theme for opencart. When I log in as a test customer and click on order history section I always get a internal server error 500. I haven't changed anything in .htaccess nor in config file. It was from the begging but from now on I need it. All the sections in customer panel works except order history and transaction section. One clue is, when I give a reward transaction to my customer the transaction section which was before in the panel would disappeared and gave me an internal 500 error. Please help me as I need it a lot.
I can't install it again because it is for 3 months and I can't start from the beginning.
I use opencart 1.5.3.1
for another internal error I got these errors in my log:
PHP Warning: unlink(public_html/system/cache/cache.currency.1358109327) [<a href='function.unlink'>function.unlink</a>]: No such file or directory in public_html/system/library/cache.php on line 14
PHP Warning: session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cookie - headers already sent by (output started at public_html/index.php:104) in public_html/system/library/session.php on line 11
PHP Warning: session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cache limiter - headers already sent (output started at public_html/index.php:104) in public_html/system/library/session.php on line 11
PHP Warning: Cannot modify header information - headers already sent by (output started at public_html/index.php:104) in public_html/index.php on line 177
PHP Warning: Cannot modify header information - headers already sent by (output started at public_html/index.php:104) in public_html/vqmod/vqcache/vq2-system_library_currency.php on line 45
you should check the unlink function
I'm a bit too late for this particular question, but since it has quite a bit of views I'll provide an answer nevertheless.
For anyone else struggling with 500 Server Errors in OpenCart – the first thing to do when debugging these is to look into your server's error log and find the exact error message.
If there aren't any, you may need to enable them explicitly by adjusting the error_reporting, display_errors and log_errors settings in your PHP configuration. You can also temporarily change them in your main index.php file directly.
Once you know the exact error message, fixing it is a simple process.
We've covered some of the most common OpenCart error messages causing 500 Server Errors in our blog post: Server Errors and Blank Pages in OpenCart: Most Common Causes.
In this particular case, the issues are caused by the fact that your cache folder is either missing or not writable by the server:
PHP Warning: unlink(public_html/system/cache/cache.currency.1358109327) [function.unlink]: No such file or directory in public_html/system/library/cache.php on line 14
This error indicates your OpenCart currency cache file is missing. In most cases, it happens when your system/cache/ folder lacks correct server permissions (for OpenCart, it's usually 775). It should be fixed by adjusting folder permissions and removing all of the existing cache files from inside the folder.