Sun Cert Path Builder Exception | unable to find valid certification path to requested target

ERROR [sling-default-2-com.day.cq.rewriter.linkchecker.impl.LinkCheckerTask.30181] com.day.cq.rewriter.linkchecker.impl.LinkCheckerTask Failed to validate URL https://ssl.kaptcha.com/collect/sdk?m=xyz&s=xxx: javax.net.ssl.SSLHandshakeException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

26.03.2024 00:02:15.421 *INFO* [sling-default-5-health-org.apache.sling.discovery.oak.SynchronizedClocksHealthCheck] org.apache.sling.discovery.oak.SynchronizedClocksHealthCheck execute: no topology connectors connected to local instance.