Website Crash when chaning PHP from 7.4.33 to 8.2.17

[knwdnick]

I updated a transferred website from 7.4.33 to 8.2.17 and the website crash... when i access the /wp-admin page, i received the following message

Deprecated: Creation of dynamic property GD_SEV_Plugin::$FILE is deprecated in /home/xxxxx/xxxxxx.com.au/wp-content/plugins/search-engine-visibility/classes/plugin.php on line 19

Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/xxxxxx/xxxxxx.com.au/wp-includes/functions.php on line 6114

Fatal error: Uncaught Error: Undefined constant "HEADER_IMAGE_WIDTH" in /home/xxxxxx/xxxxxx.com.au/wp-content/themes/prestige-brisbane/functions.php:28 Stack trace: #0 /home/xxxxxx/xxxxxx.com.au/wp-includes/class-wp-hook.php(324): twentyten_setup() #1 /home/xxxxx/xxxxxx.com.au/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #2 /home/xxxxx/xxxxxx.com.au/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/xxxxxx/xxxxxx.com.au/wp-settings.php(682): do_action('after_setup_the...') #4 /home/xxxxx/xxxxx.com.au/wp-config.php(101): require_once('/home/xxxxx/...') #5 /home/xxxxxx/xxxxxx.com.au/wp-load.php(50): require_once('/home/xxxxx/...') #6 /home/xxxxx/xxxxxx.com.au/wp-blog-header.php(13): require_once('/home/xxxxx/...') #7 /home/xxxxx/xxxxx.com.au/index.php(17): require('/home/xxxxx/...') #8 {main} thrown in /home/xxxxxx/xxxxxx.com.au/wp-content/themes/prestige-brisbane/functions.php on line 28

Can you please help

[dd32]

Hello @knwdnick and welcome to Trac!

I'm sorry to see you have got errors with your site, I understand you may need help fixing it. However, this place is for development of the the core software, and not for support or help with individual sites. That's for the support forums, with a lot of experts who are happy to guide you.

Please visit ​https://wordpress.org/support/forum/how-to-and-troubleshooting/ to either search or submit a request.

I'm closing this as "invalid", an internal status meaning your issue is not something that can be taken action on here on Trac.

As a direction towards getting support for your site, I can see in your error you've included that this is related to a plugin on your site, and the Theme your site uses. The search-engine-visibility plugin is not PHP8 compatible, and your theme prestige-brisbane is not compatible, you may be able to get help through the above support forums for how to edit the plugin/theme to resolve it, but you may also be able to get an update from the author of those items.