sogy91

Hello back all, have a nice time
All the items mentioned above were completely corrected and the problem was solved, but only the following error is shown at the top of the page:
Notice
: Function add_theme_support( ‘html5’ ) was called
incorrectly
. You must pass an array of view types. For more information, please
Debugging in WordPress
see that. (This message was added in version 3.6.1.) in
/home/journal9/domains/journalofcoms.com/public_html/wp-includes/functions.php
online
5833

How can I fix these problems?
Thank you very much

Hello buddies
Thank you for your reply and help
I updated WordPress manually and kept the previous wp-content folder and wp-config.php file for theme and plugins and upload files.
After the update, it shows the following error on the main page of the site and WordPress dashboard:
: Function add_theme_support( ‘html5’ ) was called
incorrectly
. You must pass an array of view types. For more information, please
Debugging in WordPress
see that. (This message was added in version 3.6.1.) in
/home/journal9/domains/journalofcoms.com/public_html/wp-includes/functions.php
online
5833

The site template is also displayed in a mess and the plugins are not displayed in the dashboard.

On the other hand, other pages of the site also give the following error:
Not found
The requested URL was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

How can I fix these problems?
Thank you very much

Thanks for your response.
When PHP is 7.4 or 8 displays the above error.

Also, PHP 8.1, shows the following error:
“Service Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.”