Title: json_encode error
Last modified: September 7, 2017
---
# json_encode error
* Resolved [griid](https://wordpress.org/support/users/griid/)
* (@griid)
* [8 years, 9 months ago](https://wordpress.org/support/topic/json_encode-error-2/)
* After latest update of this plugin my website stopped working. To eliminate all
other possible causes I made fresh WP installation with just CF7 and CF7MSF.
* When trying to submit step and go to the next one nothing happens and in dev
console I can find this:
*
Warning: json_encode() expects parameter 2 to be long, string
given in /autoinstalator/wordpress3/wp-content/plugins/contact-form-7-multi-
step-module/contact-form-7-multi-step-module.php on line 159
Warning: Cannot modify header information – headers already sent
by (output started at /autoinstalator/wordpress3/wp-content/plugins/contact-form-
7-multi-step-module/contact-form-7-multi-step-module.php:159) in /autoinstalator/
wordpress3/wp-content/plugins/contact-form-7-multi-step-module/contact-form-7-
multi-step-module.php on line 159
Warning: json_encode()
expects parameter 2 to be long, string given in /autoinstalator/wordpress3/
wp-content/plugins/contact-form-7-multi-step-module/contact-form-7-multi-step-
module.php on line 159
Warning: Cannot modify
header information – headers already sent by (output started at /autoinstalator/
wordpress3/wp-content/plugins/contact-form-7-multi-step-module/contact-form-7-
multi-step-module.php:159) in /autoinstalator/wordpress3/wp-content/plugins/
contact-form-7-multi-step-module/contact-form-7-multi-step-module.php on
line 159
Warning: json_encode() expects parameter
2 to be long, string given in /autoinstalator/wordpress3/wp-content/plugins/
contact-form-7-multi-step-module/contact-form-7-multi-step-module.php on
line 159
Warning: Cannot modify header information–
headers already sent by (output started at /autoinstalator/wordpress3/wp-content/
plugins/contact-form-7-multi-step-module/contact-form-7-multi-step-module.php:
159) in /autoinstalator/wordpress3/wp-content/plugins/contact-form-7-multi-
step-module/contact-form-7-multi-step-module.php on line 159
Warning: Cannot modify header information – headers already sent
by (output started at /autoinstalator/wordpress3/wp-content/plugins/contact-form-
7-multi-step-module/contact-form-7-multi-step-module.php:159) in /autoinstalator/
wordpress3/wp-includes/rest-api/class-wp-rest-server.php on line 1266
Warning: Cannot modify header information – headers already
sent by (output started at /autoinstalator/wordpress3/wp-content/plugins/contact-
form-7-multi-step-module/contact-form-7-multi-step-module.php:159) in /autoinstalator/
wordpress3/wp-includes/rest-api.php on line 551
Warning
: Cannot modify header information – headers already sent by (output started
at /autoinstalator/wordpress3/wp-content/plugins/contact-form-7-multi-step-module/
contact-form-7-multi-step-module.php:159) in /autoinstalator/wordpress3/wp-
includes/rest-api.php on line 552
Warning: Cannot
modify header information – headers already sent by (output started at /autoinstalator/
wordpress3/wp-content/plugins/contact-form-7-multi-step-module/contact-form-7-
multi-step-module.php:159) in /autoinstalator/wordpress3/wp-includes/rest-
api.php on line 553
Warning: Cannot modify header
information – headers already sent by (output started at /autoinstalator/wordpress3/
wp-content/plugins/contact-form-7-multi-step-module/contact-form-7-multi-step-
module.php:159) in /autoinstalator/wordpress3/wp-includes/rest-api.php
on line 554
{“into”:”#wpcf7-f8-p11-o1″,”status”:”mail_sent”,”message”:”
Twoja wiadomo\u015b\u0107 zosta\u0142a wys\u0142ana. Dzi\u0119kujemy!”}
* Any clues what may be the issue and how to fix it?
* The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fjson_encode-error-2%2F%3Foutput_format%3Dmd&locale=en_US)
to see the link]_
Viewing 2 replies - 1 through 2 (of 2 total)
* Plugin Author [webheadcoder](https://wordpress.org/support/users/webheadllc/)
* (@webheadllc)
* [8 years, 9 months ago](https://wordpress.org/support/topic/json_encode-error-2/#post-9477111)
* This is caused by having an outdated PHP version but i’ve updated the plugin
anyway and it should be fixed in version 2.25.
* Thread Starter [griid](https://wordpress.org/support/users/griid/)
* (@griid)
* [8 years, 9 months ago](https://wordpress.org/support/topic/json_encode-error-2/#post-9477518)
* Thanks! Changing PHP version in .htaccess did the job.
Viewing 2 replies - 1 through 2 (of 2 total)
The topic ‘json_encode error’ is closed to new replies.
* 
* [Contact Form 7 Multi-Step Forms](https://wordpress.org/plugins/contact-form-7-multi-step-module/)
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* 2 replies
* 2 participants
* Last reply from: [griid](https://wordpress.org/support/users/griid/)
* Last activity: [8 years, 9 months ago](https://wordpress.org/support/topic/json_encode-error-2/#post-9477518)
* Status: resolved