ErrorRescue Team Error Establishing Database Connection means the website cannot connect to its database server. The application loads, but it fails before retrieving the data needed to generate the page. This error is common in database-driven platforms such as WordPress. In most cases the cause is incorrect database credentials, a crashed database service, or server resource limits. … Read more
Upstream Timeout Error occurs when a proxy or gateway server waits too long for a response from an upstream server. The request reaches the gateway successfully, but the backend service does not respond within the configured timeout period. When that limit is exceeded, the gateway stops waiting and returns a timeout error. Quick Fix Reload … Read more
500 Internal Server Error means the server failed while processing the request. The request reached the server successfully, but something inside the application or server configuration broke. The error is intentionally generic. It indicates that the server encountered an unexpected condition and could not return a valid response. Quick Fix Reload the page after a … Read more
504 Gateway Timeout means a server acting as a gateway or proxy did not receive a response from the upstream server in time. The request reaches the gateway server, but the backend service takes too long to respond. When the timeout limit is exceeded, the gateway stops waiting and returns a 504 error. Quick Fix … Read more
502 Bad Gateway appears when a server acting as a gateway or proxy receives an invalid response from an upstream server. The request reaches the gateway, but the backend service fails to respond correctly. As a result, the browser cannot load the page. Quick Fix Reload the page after a few seconds. Clear browser cache … Read more
503 Service Unavailable means the server is running but cannot process the request right now. The web server is reachable, but the application or backend service is temporarily unable to respond. This error usually appears during traffic spikes, maintenance, or backend failures. Quick Fix Reload the page after a few seconds. Check server CPU and … Read more
Too Many Redirects After SSL appears when a browser is trapped in a redirect loop after HTTPS is enabled. The request keeps bouncing between URLs and never reaches the final page. The browser eventually stops the process and displays a redirect error. Quick Fix Clear browser cookies and cache. Check HTTP → HTTPS redirect rules … Read more
SSL Certificate Not Trusted means the browser cannot verify the identity of a website. The secure HTTPS connection is blocked because the certificate cannot be validated. This usually happens when the certificate chain is incomplete, the certificate is self-signed, expired, or installed incorrectly. Quick Fix Check if the SSL certificate is expired. Confirm it was … Read more
NET::ERR_CERT_AUTHORITY_INVALID means the browser does not trust the website’s SSL certificate. The secure connection is blocked. This happens when the certificate cannot be verified against a trusted Certificate Authority (CA). Quick Fix Check if the SSL certificate is expired. Make sure it’s issued by a trusted CA (not self-signed). Install the full certificate chain (server … Read more
Mixed Content Error occurs when an HTTPS page loads resources over HTTP. The page is secure, but some elements are not. Modern browsers block insecure resources. This breaks functionality and weakens trust. Quick Fix Open DevTools → Console → identify blocked HTTP URLs. Replace all http:// links with https://. Update WordPress Site URL to HTTPS. … Read more