# reCAPTCHA Settings for Gravity Forms Not Opening \[RESOLVED\] **URL:** \ **Category:** Get Help\ **Tags:** recaptcha, error-http-500, ctype\_alnum, fatal-error, conflict\ **Created:** [July 27, 2022, 5:49pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127 "2022-07-27T17:49:19Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![brian1](https://avatars.discourse-cdn.com/v4/letter/b/50afbb/32.png) [@brian1](https://community.gravityforms.com/u/brian1)\ **Post date:** [July 27, 2022, 5:49pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/1 "2022-07-27T17:49:19Z")
I have Gravity Forms 2.6.4, WordPress 6.0.1, PHP 7.4.10 and use Betheme Child. After opening settings under forms, I cannot click on the reCAPTCHA or REST API without receiving “There has been a critical error on this website. Please check your site admin email inbox for instructions.” I have disabled plugins, tried different browsers and cleared cache. Any other things to try? I finally have time to add the newest reCAPTCHA to my forms, but can’t do it. ---
**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:** [July 28, 2022, 8:02pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/2 "2022-07-28T20:02:46Z")
Check the web server error log for what caused the critical error. WordPress also sends an email to the admin email address for the website. That email will contain the error message and stack trace. You will need to know what is causing the fatal error to fix it. If you have already disabled **all** plugins, the next step is to try a default theme: > **[Testing for a Theme/Plugin Conflict](http://docs.gravityforms.com/testing-theme-plugin-conflict/)** > > The following sections provide instructions for determining if an issue you are experiencing with Gravity Forms is caused by a theme or plugin conflict. And if you are getting the critical error with no plugins other than Gravity Forms with a default theme like Twenty Twenty, then there could be an issue with the PHP configuration on the server. If you’re not able to figure it out, please contact support: [https://www.gravityforms.com/open-support-ticket/technical/](https://www.gravityforms.com/open-support-ticket/technical/) Thank you. ---
**Author:** ![brian1](https://avatars.discourse-cdn.com/v4/letter/b/50afbb/32.png) [@brian1](https://community.gravityforms.com/u/brian1)\ **Post date:** [August 3, 2022, 6:06pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/3 "2022-08-03T18:06:35Z")
Thanks for the response. I do have an email with the below info. I have no idea what it means, other than it does show a stack trace. An error of type E\_ERROR was caused in line 164 of the file /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/includes/locking/locking.php. Error message: Uncaught Error: Call to undefined function ctype\_alnum() in /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/includes/locking/locking.php:164 Stack trace: #0 /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/includes/locking/class-gf-locking.php(48): GFPluginSettingsLocking-\>get\_object\_id() #1 /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/includes/locking/locking.php(144): GFLocking-\>\_\_construct(‘plugin\_settings’, '[https://u2029192.ct.sendgrid.net/ls/click?upn=qdHzxhr2R1bURNjxBpKLoFt1r7fxBVEFktY1rGVJAr4-3DDYww\_ihI3KbRY2lU1DD9dI1WqKTRqdlYc7QIzCeDPNpUxhhlpN-2FPb4a6jZYrF505YkVIar3xGx3-2F5dtY-2Fd-2FFTBTJFTsfrfURfRxP6-2B0Qcl5oi8cv8V5J9wVqFvkX0Mr0aEwtj8oB-2FuFGrDshAIDjwoHmknm59Ie2lTKWZbhbRCSWmN0PANcwK1VZ-2BS8tVYoNWuZlpDIe5Kfqsz4C5o75r71sGu2BvpooDA8xyv3-2BRBawaRQOZu-2FxB2aQNg5dGQOO6n6aTmWdLeZ6lbnb7mR0jBV1EVA-3D-3D](https://u2029192.ct.sendgrid.net/ls/click?upn=qdHzxhr2R1bURNjxBpKLoFt1r7fxBVEFktY1rGVJAr4-3DDYww_ihI3KbRY2lU1DD9dI1WqKTRqdlYc7QIzCeDPNpUxhhlpN-2FPb4a6jZYrF505YkVIar3xGx3-2F5dtY-2Fd-2FFTBTJFTsfrfURfRxP6-2B0Qcl5oi8cv8V5J9wVqFvkX0Mr0aEwtj8oB-2FuFGrDshAIDjwoHmknm59Ie2lTKWZbhbRCSWmN0PANcwK1VZ-2BS8tVYoNWuZlpDIe5Kfqsz4C5o75r71sGu2BvpooDA8xyv3-2BRBawaRQOZu-2FxB2aQNg5dGQOO6n6aTmWdLeZ6lbnb7mR0jBV1EVA-3D-3D) '[https://u2029192.ct.sendgrid.net/ls/click?upn=qdHzxhr2R1bURNjxBpKLoFt1r7fxBVEFktY1rGVJAr4-3DwIsA\_ihI3KbRY2lU1DD9dI1WqKTRqdlYc7QIzCeDPNpUxhhlpN-2FPb4a6jZYrF505YkVIar3xGx3-2F5dtY-2Fd-2FFTBTJFTmABlwcPBtAzI6-2FGA4OpRem7KfmkF6rrI81fTP3v-2FN9YTG0mnLZXRB5kxpfsuvBli1IGdF4wjeCT7U2O-2B1TJWftwInkz7UHoYIaSWET79-2B8V72VB4ICTDu-2BBcmEyI4vLDx-2BUUCFroBNVRGaZSaDeufbTvACIqqZmAhJT7dRPuX0VBtOiyaWRGLUXm5emFqK2IQ-3D-3D](https://u2029192.ct.sendgrid.net/ls/click?upn=qdHzxhr2R1bURNjxBpKLoFt1r7fxBVEFktY1rGVJAr4-3DwIsA_ihI3KbRY2lU1DD9dI1WqKTRqdlYc7QIzCeDPNpUxhhlpN-2FPb4a6jZYrF505YkVIar3xGx3-2F5dtY-2Fd-2FFTBTJFTmABlwcPBtAzI6-2FGA4OpRem7KfmkF6rrI81fTP3v-2FN9YTG0mnLZXRB5kxpfsuvBli1IGdF4wjeCT7U2O-2B1TJWftwInkz7UHoYIaSWET79-2B8V72VB4ICTDu-2BBcmEyI4vLDx-2BUUCFroBNVRGaZSaDeufbTvACIqqZmAhJT7dRPuX0VBtOiyaWRGLUXm5emFqK2IQ-3D-3D) Array) #2 /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/includes/locking/locking.php(173): GFPluginSettingsLocking-\>\_\_construct() #3 /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-content/plugins/gravityforms/gravityforms.php(476): require\_once(‘/hermes/walnacw…’) #4 /hermes/walnacweb05/walnacweb05af/b1763/moo.nelsayed/wp-includes/class-wp-hook.php(307): GFForms::init(‘’) #5 /hermes/walnacweb05/waln ---
**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:** [August 3, 2022, 7:34pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/4 "2022-08-03T19:34:58Z")
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) ---
**Author:** ![brian1](https://avatars.discourse-cdn.com/v4/letter/b/50afbb/32.png) [@brian1](https://community.gravityforms.com/u/brian1)\ **Post date:** [August 9, 2022, 5:24pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/5 "2022-08-09T17:24:40Z")
Thank you Karl. Having my host turn on PHP ctype fixed my issue. ---
**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:** [August 9, 2022, 9:04pm UTC](https://community.gravityforms.com/t/recaptcha-settings-for-gravity-forms-not-opening-resolved/13127/6 "2022-08-09T21:04:59Z")