sometimes it will crash to displaying 500 error code or 508 error code and i found out that it usually consume the server CPU and Physical Memory .

I found out that in the server error log, theres a consistent errors which are;

1. Latest web server error log messages:

[Mon Mar 03 10:23:03.431253 2025] [access_compat:error] [pid 1280542:tid 1280778] [client 89.58.42.64:42058] AH01797: client denied by server configuration: /home/hairssen/public_html/xmlrpc.php
[Sun Mar 02 23:21:10.547649 2025] [access_compat:error] [pid 2823309:tid 2823464] [client 46.203.28.235:53171] AH01797: client denied by server configuration: /home/hairssen/public_html/xmlrpc.php
[Sun Mar 02 23:20:59.369496 2025] [access_compat:error] [pid 2823198:tid 2823284] [client 103.101.90.22:55263] AH01797: client denied by server configuration: /home/hairssen/public_html/xmlrpc.php
[Sun Mar 02 23:20:37.232566 2025] [access_compat:error] [pid 2823307:tid 2823346] [client 188.213.1.215:37373] AH01797: client denied by server configuration: /home/hairssen/public_html/xmlrpc.php
[Sun Mar 02 23:20:26.689408 2025] [access_compat:error] [pid 2823198:tid 2823287] [client 45.146.30.181:38589] AH01797: client denied by server configuration: /home/hairssen/public_html/xmlrpc.php……………………………………..and it continued like that

2. Latest suEXEC event log messages:

[2025-03-03 11:21:15]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:21:12]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:21:09]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:21:01]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:20:53]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:20:52]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:20:43]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:20:43]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82
[2025-03-03 11:20:42]: uid: (1460/hairssen) gid: (1462/hairssen) cmd: ea-php82………………………………………and it continued like that

But when adding a text in the pop-up of a single person, then the server is not responding anymore (error 500), saying that the server may have an internal error or is surcharged or that there’s a CGI Script error. But the site works perfectly on all other pages.

The problem only appears when adding text (only simple text) in the pop-up.

What can I do to solve it ?

Server error in data/today: No route was found matching the URL and request method.

How can this be fixed? No other plugins produce such issues and PHP 7.4 is quite outdated already.

In WPML they write:
Identifying the specific plugin causing this issue can be challenging. It involves testing in a minimal environment and deactivating plugins one by one. After finding the responsible plugin, you would need to contact the author and request that they add a fix that limits the rewrite rule flushing to happen only once.?
Source: https://wpml.org/faq/why-is-htaccess-getting-overwritten-with-the-language-folder-on-my-wpml-website/

You can fix it by adding the code they provide to functions.php but after I did that the site drop down in google searches. So it creates very critical problem, because you want to your site to be at top in searches.

It would be nice to fix that plugin to work perfectly fine with WPML.

Ours is a dedicated NGINX server. What can I do to troubleshoot this error?

Here is the message:

Server error: POST https://wp-api.depicter.com/v1/client/validate/activation resulted in a 500 Internal Server Error response: <br /> <b>Warning</b>: mysqli_real_connect(): (HY000/1040): Too many connections in <b>/var/www/server/wp-includes/clas (truncated…)

Could you please assist me in resolving this issue? Any guidance or
troubleshooting steps would be greatly appreciated.