Unable to process encrypted logs on syslog server

Issue

• The syslog server which is configured to accept encrypted logs is unable to process logs and reports following in /var/log/messages:

Aug  2 15:42:14 node1.example.com rsyslogd: unexpected GnuTLS error -12 in nsdsel_gtls.c:178: A TLS fatal alert has been received.  [v8.24.0-57.el7_9.3 try http://www.rsyslog.com/e/2078 ]
Aug  2 15:42:14 node1.example.com rsyslogd: netstream session 0x7f77f8026060 from X.X.X.X will be closed due to error  [v8.24.0-57.el7_9.3 try http://www.rsyslog.com/e/2089 ]