Fatal error: ob_start(): Cannot use output buffering in output buffering display handlers in

MerithsMisc commented 6 years ago

[x ] I've read and understood the contribution guidelines.
[ x] I've searched for any related issues and avoided creating a duplicate issue.

Please give us a description of what happened.

Whenever I try to click on any categories on my website I get the following error:

Fatal error: ob_start(): Cannot use output buffering in output buffering display handlers in /home3/merithco/public_html/wp-content/plugins/wordpress-seo/frontend/class-frontend.php on line 1820

Please describe what you expected to happen and why.

I expected to be able to see the posts in each category.

How can we reproduce this behavior?

Go to www.merith.com
Click on any of the 'Categories' in the box on the right of the homepage
read the error message that comes up

Screenshots

If applicable, add screenshots to help explain your problem.

Additional context

Add any other context about the problem here.

Technical info

WordPress version: Version 4.9.8
Yoast SEO version: Yoast SEO (Basic)
Relevant plugins in case of a bug:

Akismet Anti-SpamSettings \	Deactivate	Used by millions, Akismet is quite possibly the best way in the world to protect your blog from spam. It keeps your site protected even while you sleep. To get started, just go to your Akismet Settings page to set up your API key.Version 4.0.8 \	By Automattic \	View details
All In One SEO PackUpgrade to Pro \| Documentation \| Support Forum \| SEO Settings \| Deactivate	Out-of-the-box SEO for your WordPress blog. Features like XML Sitemaps, SEO for custom post types, SEO for blogs or business sites, SEO for ecommerce sites, and much more. More than 30 million downloads since 2007.Version 2.7.2 \| By Michael Torbert \| View details \| Feature Request/Bug Report
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Constant Contact Forms for WordPressDeactivate \| About \| License \| \| \|	Be a better marketer. All it takes is Constant Contact email marketing.Version 1.3.7 \| By Constant Contact \| View details
Google Analytics Dashboard for WP (GADWP)Settings \| Deactivate	Displays Google Analytics Reports and Real-Time Statistics in your Dashboard. Automatically inserts the tracking code in every page of your website.Version 5.3.5 \| By ExactMetrics \| View details
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There is a new version of Google Analytics for WordPress by MonsterInsights available. View version 7.1.0 details or update now. Hello DollyDeactivate | This is not just a plugin, it symbolizes the hope and enthusiasm of an entire generation summed up in two words sung most famously by Louis Armstrong: Hello, Dolly. When activated you will randomly see a lyric from Hello, Dolly in the upper right of your admin screen on every page.Version 1.6 | By Matt Mullenweg | View details Instagram FeedSettings | Deactivate | Display beautifully clean, customizable, and responsive Instagram feedsVersion 1.9.1 | By Smash Balloon | View details Jetpack by WordPress.comJetpack | Settings | Support | Deactivate | Bring the power of the WordPress.com cloud to your self-hosted WordPress. Jetpack enables you to connect your blog to a WordPress.com account to use the powerful features normally only available to WordPress.com users.Version 6.4 | By Automattic | View details MailChimp for WordPressSettings | Deactivate | MailChimp for WordPress by ibericode. Adds various highly effective sign-up methods to your site.Version 4.2.4 | By ibericode | View details | Documentation | Upgrade to Premium MailChimp Forms by MailMunchSettings | Deactivate | The MailChimp plugin allows you to quickly and easily add signup forms for your MailChimp lists. Popup, Embedded, Top Bar and a variety of different options available.Version 3.1.1 | By MailMunch | View details Open external links in a new windowDeactivate | Settings | Opens all external links in a new window. XHTML Strict compliant and search engine optimized (SEO).Version 1.3.2 | By Kristian Risager Larsen | View details OptinMonster APIDeactivate | OptinMonster API plugin to connect your WordPress site to your OptinMonster account.Version 1.5.0 | By OptinMonster Team | View details TinyMCE AdvancedSettings | Deactivate | Enables advanced features and plugins in TinyMCE, the visual editor in WordPress.Version 4.8.0 | By Andrew Ozz | View details UpdraftPlus - Backup/RestoreAdd-Ons / Pro Support | Settings | Deactivate | Backup and restore: take backups locally, or backup to Amazon S3, Dropbox, Google Drive, Rackspace, (S)FTP, WebDAV & email, on automatic schedules.Version 1.14.12 | By UpdraftPlus.Com, DavidAnderson | View details WP External LinksDeactivate | Open external links in a new tab or window, adding "nofollow" and "noopener", set font icon, SEO friendly options and more.Version 2.2.0 | By Victor Villaverde Laan | View details WP Instagram WidgetDeactivate | A WordPress widget for showing your latest Instagram photos.Version 2.0.3 | By Scott Evans | View details Yoast SEOFAQ | Premium Support | Settings | Deactivate | The first true all-in-one SEO solution for WordPress, including on-page content analysis, XML sitemaps and much more.Version 7.9.1 | By Team Yoast | View details Yoast SEO: Search index purgeDeactivate

Tested with theme: Twenty Seventeen

benvaassen commented 6 years ago

Thanks for reporting this issue. And please don't use All In One SEO Pack together with Yoast SEO. Having two SEO plugins can only cause (duplicate) issues. Please choose one of the two.

We'll need to know if this behaviour is caused by a conflict with a plugin or theme. Therefore we want to ask you to do the following (please create a backup first):

Log in to your WordPress website.
Deactivate all non-Yoast plugins.
Switch your theme to a standard theme like Twenty Seventeen.
Test if the issue still occurs.

If it still occurs:

Add a summary of the above steps to your bug report.

If it doesn't occur anymore:

Reactivate all non-Yoast plugins one-by-one.
Test for the issue again after every plugin you reactivate.

If the problem reoccurred after reactivating one of your plugins, please add that information to your bug report.

You can also use the Health Check plugin to check for conflicts (how to check for plugin conflicts) if you don’t want to disable plugins and themes on a live site.

Thanks!

CarolineGeven commented 6 years ago

Closing due to inactivity. If this issue is still relevant, please open a new issue with the requested information. Thanks for your understanding.

Akismet Anti-SpamSettings \	Deactivate	Used by millions, Akismet is quite possibly the best way in the world to protect your blog from spam. It keeps your site protected even while you sleep. To get started, just go to your Akismet Settings page to set up your API key.Version 4.0.8 \	By Automattic \	View details
All In One SEO PackUpgrade to Pro \| Documentation \| Support Forum \| SEO Settings \| Deactivate	Out-of-the-box SEO for your WordPress blog. Features like XML Sitemaps, SEO for custom post types, SEO for blogs or business sites, SEO for ecommerce sites, and much more. More than 30 million downloads since 2007.Version 2.7.2 \| By Michael Torbert \| View details \| Feature Request/Bug Report
BluehostDeactivate	This plugin integrates your WordPress site with the Bluehost control panel, including performance, security, and update features.Version 1.3.4 \| By Mike Hansen
Constant Contact Forms for WordPressDeactivate \| About \| License \| \| \|	Be a better marketer. All it takes is Constant Contact email marketing.Version 1.3.7 \| By Constant Contact \| View details
Google Analytics Dashboard for WP (GADWP)Settings \| Deactivate	Displays Google Analytics Reports and Real-Time Statistics in your Dashboard. Automatically inserts the tracking code in every page of your website.Version 5.3.5 \| By ExactMetrics \| View details
Google Analytics for WordPress by MonsterInsightsActivate \| Delete	The best Google Analytics plugin for WordPress. See how visitors find and use your website, so you can keep them coming back.Version 7.0.9 \| By MonsterInsights \| View details

Yoast / wordpress-seo