Error 503 Service Unavailable AH00169: caught SIGTERM, shutting down

Job ID: 31769414

Budget: $15 – $25 USD

I have a problem with the website, when I upload to the website more than 100 requests, php stops and I get error 503

I am working with ISPCONFIG control panel. I will inform you for more details.

What i can see from logs is this message /var/log/apache2 > [Sun Oct 10 15:21:59.507586 2021] [mpm_prefork:notice] [pid 15769] AH00169: caught SIGTERM, shutting down

"ERROR 503 - Service Unavailable!
The following error occurred:
The Service is not available at the moment due to a temporary overloading or maintenance of the server. Please try again later.

Please contact the webmaster with any queries."
Related categories: PHP System Admin Linux Apache MySQL