Title: Errors with 4.0
Last modified: August 22, 2016

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# Errors with 4.0

 *  [jgj_](https://wordpress.org/support/users/jgj_/)
 * (@jgj_)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/errors-with-40/)
 * `Strict standards: Only variables should be passed by reference in [...]/plugins/
   instafx/instafx.php on line 87`
 * `Warning: Cannot modify header information - headers already sent by (output 
   started at [...]/plugins/instafx/instafx.php:87) in [...]/wp-includes/pluggable.
   php on line 1173`
 * Also line 263 of instafx.php should use jQuery’s `on` function, not `live`
 * [https://wordpress.org/plugins/instafx/](https://wordpress.org/plugins/instafx/)

Viewing 1 replies (of 1 total)

 *  [shinjing](https://wordpress.org/support/users/shinjing/)
 * (@shinjing)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/errors-with-40/#post-5442643)
 * Hi,
 * About warning ‘Warning: Cannot modify header information’ it is usually caused
   by a mistake on the ‘wp-config.php’.
 * You can open the file and make sure if there is not a space available before 
   and after this code: <? and ?>

Viewing 1 replies (of 1 total)

The topic ‘Errors with 4.0’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [shinjing](https://wordpress.org/support/users/shinjing/)
 * Last activity: [11 years, 5 months ago](https://wordpress.org/support/topic/errors-with-40/#post-5442643)
 * Status: not resolved