Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
I'm using this port for sending some data through an API to a mediator. It was all working fine until the certificate expired. and I started receiving this error ERROR - UgandaHimHttpURLConnection.sendPostByWithBasicAuth(163) |2019-09-29 11:55:59,347| javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: validity check failed