Title: [Plugin: WP-HTML-Compression] PHP Catchable fatal error
Last modified: August 20, 2016
---
# [Plugin: WP-HTML-Compression] PHP Catchable fatal error
* Resolved [biswajeet](https://wordpress.org/support/users/biswajeet/)
* (@biswajeet)
* [14 years ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/)
* Hi I am this error –
`PHP Catchable fatal error: Method WP_HTML_Compression::
__toString() must return a string value in /wp-includes/functions.php on line
3335`
* thanks.
* [http://wordpress.org/extend/plugins/wp-html-compression/](http://wordpress.org/extend/plugins/wp-html-compression/)
Viewing 4 replies - 1 through 4 (of 4 total)
* Plugin Author [Steven Vachon](https://wordpress.org/support/users/prometh/)
* (@prometh)
* [14 years ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/#post-2729861)
* Were you attempting to load an empty HTML document?
* Thread Starter [biswajeet](https://wordpress.org/support/users/biswajeet/)
* (@biswajeet)
* [14 years ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/#post-2729900)
* I just changed the update version code to –
`@add_action('get_header', 'wp_html_compression_start',
1);`
* And now its working fine…
* Check it out
* Plugin Author [Steven Vachon](https://wordpress.org/support/users/prometh/)
* (@prometh)
* [14 years ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/#post-2729901)
* If you have a theme that does not call `get_header()`, such as single page themes,
then compression will not occur.
* Plugin Author [Steven Vachon](https://wordpress.org/support/users/prometh/)
* (@prometh)
* [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/#post-2729938)
* Error no longer displayed in 0.5.1
Viewing 4 replies - 1 through 4 (of 4 total)
The topic ‘[Plugin: WP-HTML-Compression] PHP Catchable fatal error’ is closed to
new replies.
* 
* [WP-HTML-Compression](https://wordpress.org/plugins/wp-html-compression/)
* [Frequently Asked Questions](https://wordpress.org/plugins/wp-html-compression/#faq)
* [Support Threads](https://wordpress.org/support/plugin/wp-html-compression/)
* [Active Topics](https://wordpress.org/support/plugin/wp-html-compression/active/)
* [Unresolved Topics](https://wordpress.org/support/plugin/wp-html-compression/unresolved/)
* [Reviews](https://wordpress.org/support/plugin/wp-html-compression/reviews/)
* 4 replies
* 2 participants
* Last reply from: [Steven Vachon](https://wordpress.org/support/users/prometh/)
* Last activity: [13 years, 9 months ago](https://wordpress.org/support/topic/plugin-wp-html-compression-php-catchable-fatal-error/#post-2729938)
* Status: resolved