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It looks a little strange, but in the Cloudflare panel I found a huge number of bots from Germany being blocked. When I disabled the CF firewall, everything started working without any problems. The only thing I can’t figure out is how the bots from Germany relate to the cron, which runs on a website that is hosted in Singapore. But now everything works. It is a fact.
I will try to describe what I am doing next.
1. This is union php.ini, is similar for my every blog. Nothing different.
2. I have now downloaded the WP Crontrol plugin to see what is happening with crones on this blog. After installing this plugin, I saw the following warning:
There was a problem spawning a call to the WP-Cron system on your site. This means WP-Cron events on your site may not work. The problem was:
Unexpected HTTP response code: 503
3. After this I jumped to Github, to this article https://github.com/johnbillion/wp-crontrol/wiki/Problems-with-spawning-a-call-to-the-WP-Cron-system
In case of error 500 and above, it is recommended to check the error logs on the hosting. Now I will check them again, and write again here.
Also, I found some description about 503 error:
503 error:
The 503 service unavailable error occurs when your web server is unable to get a proper response from a PHP script. This PHP script could be a WordPress plugin, a theme, or a misbehaving custom code snippet.
– If the error is caused by heavy usage, a server glitch, server temporarily offline for maintenance, the server too busy or concurrent request limit exceeded, or a DDoS attack, then it could automatically disappear in a few minutes.
– However, if it is caused by bad code on your website, then it will keep occurring unless you find and disable the code that’s causing it.To troubleshoot, try:
– Deactivate plugins, switch theme, reinstall WP
– Review https://www.wpbeginner.com/wp-tutorials/how-to-fix-503-service-unavailable-error-in-wordpress/
– If these methods fail to resolve the error, then try contacting your hosting provider.I’ll check now
I forgot say somthing. After I changed the quotation marks, the following issue appeared in the bug reports. I changed them back.
PHP version 7.4
Please note that these hosting settings are absolutely identical for my five blogs. But on three blogs I can run the malware scanner, but on two blogs I can’t.
Based on this, one would assume that the problem is in the installed plugins, but they are all disabled, the cache is cleared.
OK. Next step.
Can you please change PHP define instruction
define(‘QTR_FS_SNAPSHOT’, true);
to
define(“QTR_FS_SNAPSHOT”, true);
Do you see the same error?
I set the parameters you recommended, after that I cleared the cache on the Cloudflare and ran a scan. This is what I see.
Pay attention to the quotes that are used by default in my config file.
INFO Starting investigation of /home/***/public_html/***blog.com/ INFO Patterns database /home/***/public_html/***blog.com/wp-content/plugins/quttera-web-malware-scanner/patterns.db loaded successfully ERROR Failed to update option qtr_scan_cron_args INFO Internal scan scheduled. Next run 23:52:03 INFO Starting internal scan of [/home/***/public_html/***blog.com/] INFO Termination sent successfully. Waiting for scan job INFO Submitting internal scan request INFO Starting investigation of /home/***/public_html/***blog.com/ INFO Patterns database /home/***/public_html/***blog.com/wp-content/plugins/quttera-web-malware-scanner/patterns.db loaded successfully INFO Operation succeeded. Internal scan startedThree minutes after starting, I see this
INFO Starting investigation of /home/***/public_html/***blog.com/ INFO Patterns database /home/***/public_html/***blog.com/wp-content/plugins/quttera-web-malware-scanner/patterns.db loaded successfully ERROR Failed to update option qtr_scan_cron_args INFO Internal scan scheduled. Next run 15:21:30 INFO Starting internal scan of [/home/***/public_html/***blog.com/]