Title: Error in Regular Expression
Last modified: October 16, 2024

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# Error in Regular Expression

 *  Resolved [dibeja](https://wordpress.org/support/users/dibeja/)
 * (@dibeja)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/error-in-regular-expression/)
 * I’m using the Whatsapp Extension.
   Upon submitting i got this message:Pattern 
   attribute value [0-9()#&+_-=.]+ is not a valid regular expression: Uncaught SyntaxError:
   Invalid regular expression: /[0-9()#&+_-=.]+/v: Invalid character in character
   class
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-in-regular-expression%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Thread Starter [dibeja](https://wordpress.org/support/users/dibeja/)
 * (@dibeja)
 * [1 year, 7 months ago](https://wordpress.org/support/topic/error-in-regular-expression/#post-18076392)
 * Sorry I found out this is an Elementor form problem

Viewing 1 replies (of 1 total)

The topic ‘Error in Regular Expression’ is closed to new replies.

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## Tags

 * [regular expression](https://wordpress.org/support/topic-tag/regular-expression/)

 * 1 reply
 * 1 participant
 * Last reply from: [dibeja](https://wordpress.org/support/users/dibeja/)
 * Last activity: [1 year, 7 months ago](https://wordpress.org/support/topic/error-in-regular-expression/#post-18076392)
 * Status: resolved