Home › Forums › Support Forum › Another Plugin or Theme is using 'fatal_error_handler' to handle output buffers
This topic contains 1 reply, has 2 voices, and was last updated by Anti-Malware Admin 6 years ago.
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December 3, 2018 at 6:22 am #2191
Hi,
On the GOTMLS screen in wordpress I see following error: “Another Plugin or Theme is using ‘fatal_error_handler’ to handle output buffers. This prevents actively outputing the buffer on-the-fly and could severely degrade the performance of this (and many other) Plugins. Consider disabling caching and compression plugins (at least during the scanning process).”
I also see the last scan took 4 hours whereas previously they were taking around 30 minutes. Please help resolve issue so that the above message can be removed.
Following are all the plugins installed as you can see there is no caching plugin:
### Active Plugins (33) ###
AceIDE: by AceIDE – 2.6.2
Akismet Anti-Spam: by Automattic – 4.1
Duplicate Post: by Enrico Battocchi – 3.2.2
Google Tag Manager for WordPress: by Thomas Geiger – 1.9 – Not tested with the active version of WooCommerce
Easy Theme and Plugin Upgrades: by Chris Jean – 2.0.1
Flat Rate per State/Country/Region for WooCommerce: by Webdados – 2.5.2
Anti-Malware Security and Brute-Force Firewall: by Eli Scheetz – 4.17.69
WooCommerce I-Fulfilment Integration: by I-Fulfilment – Developer Team – support.team@i-fulfilment.co.uk – 2.0.3 – Not tested with the active version of WooCommerce
Klaviyo for WooCommerce: by Klaviyo
Inc. – 1.0.4 – Not tested with the active version of WooCommerce
Klaviyo: by Klaviyo – 1.3.2
Maintenance: by fruitfulcode – 3.6.1
McAfee SECURE: by McAfeeSECURE – 1.7.7
Ninja Forms: by The WP Ninjas – 3.3.18
Pretty Links: by Blair Williams – 2.1.7
Really Simple CSV Importer: by Takuro Hishikawa – 1.3
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 3.0.2
ShortPixel Image Optimizer: by ShortPixel – 4.12.1
Sucuri Security – Auditing, Malware Scanner and Hardening: by Sucuri Inc. – 1.8.18
SumoMe: by SumoMe – 1.30
Taxonomy Metadata: by mitcho (Michael Yoshitaka Erlewine)
sirzooro – 0.5
December 3, 2018 at 10:36 am #2192It looks like fatal_error_handler was originally used in concrete vendor software called Symfony that is available on GetHub, but it may have been re-purposed for one of your plugin or some other malicious code on your site.
I don’t know anything about AceIDE or sirzooro but they both also have forks on GetHub. Do you know what all the plugins on your site are there for, and can you validate that their source is legitimate?
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