# There has been a critical error on this website \[RESOLVED\]

**URL:** <https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828>\
**Category:** Get Help\
**Tags:** error-http-500, ctype\_alnum\
**Created:** [June 14, 2022, 5:05pm UTC](https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828 "2022-06-14T17:05:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![fmedia](https://avatars.discourse-cdn.com/v4/letter/f/eb9ed0/32.png) [@fmedia](https://community.gravityforms.com/u/fmedia)\
**Post date:** [June 14, 2022, 5:05pm UTC](https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828/1 "2022-06-14T17:05:39Z")

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On the front end my forms no longer go to the confirmation message (just stays on the form and keeps spinning), but entries are logged. On the backend when I try to go into GF logging or form confirmations/notifications settings I get the WP error “There has been a critical error on this website. Please check your site admin email inbox for instructions.”

Since I can’t get to GF Error Log page all I have to work with is the WP email that gets sent out cause of the error…

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# Error Details

An error of type E\_ERROR was caused in line 124 of the file /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/includes/locking/locking.php. Error message: Uncaught Error: Call to undefined function ctype\_alnum() in /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/includes/locking/locking.php:124  
Stack trace:  
#0 /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/includes/locking/class-gf-locking.php(48): GFFormSettingsLocking-\>get\_object\_id()  
#1 /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/includes/locking/locking.php(102): GFLocking-\>\_\_construct(‘form\_settings’, ‘bloodca...’, ‘bloodca...’, Array)  
#2 /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/includes/locking/locking.php(137): GFFormSettingsLocking-\>\_\_construct()  
#3 /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-content/plugins/gravityforms/gravityforms.php(476): require\_once(‘/hermes/bosnacw…’)  
#4 /hermes/bosnacweb02/bosnacweb02cj/b1815/ywh.ch0098/wordpress/wp-includes/class-wp-hook.php(307): GFF

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**Author:** ![karlpotter](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/karlpotter/32/3427_2.png) [@karlpotter](https://community.gravityforms.com/u/karlpotter)\
**Post date:** [June 14, 2022, 7:19pm UTC](https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828/2 "2022-06-14T19:19:24Z")

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Contact your hosting provider and have them enable the PHP ctype functions for your site. [PHP: Ctype - Manual](https://www.php.net/manual/en/book.ctype.php)

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**Author:** ![fmedia](https://avatars.discourse-cdn.com/v4/letter/f/eb9ed0/32.png) [@fmedia](https://community.gravityforms.com/u/fmedia)\
**Post date:** [June 15, 2022, 10:37pm UTC](https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828/3 "2022-06-15T22:37:20Z")

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That you for the support. That did the trick along with a PHP version downgrade to 7.3.

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**Author:** ![chrishajer](https://sea2.discourse-cdn.com/flex020/user_avatar/community.gravityforms.com/chrishajer/32/88_2.png) [@chrishajer](https://community.gravityforms.com/u/chrishajer)\
**Post date:** [June 16, 2022, 7:54pm UTC](https://community.gravityforms.com/t/there-has-been-a-critical-error-on-this-website-resolved/12828/4 "2022-06-16T19:54:18Z")

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