What does this code mean?
HTTP 413 Content Too Large is the web server response to a browser, bot, API or test tool request. On hosting, read it together with the URL, request method, application logs, DNS, SSL, cache and recent website changes.
What should be checked on hosting?
First check whether the problem affects one URL, the whole domain, mail, SSL, redirects, cache or resource limits. For 4xx codes we usually inspect the address, permissions, login, .htaccess, ModSecurity and application configuration. For 5xx codes we inspect error logs, PHP, databases, LVE, cache, CMS updates and dependent services.
How to report it to support?
Send the HTTP 413 code, full URL, approximate time, your IP address, recent changes and a screenshot or message text. Hostilla.pl support can then check server logs, DNS, SSL, e-mail, backups, moving, account limits and cPanel configuration faster. Affordable good hosting also means working PHP-FPM, OPcache, Redis or Memcached, clear price in PLN and renewal for the next year.