What this mean? How to fix?
syslog-ng |Error opening plugin module; module='afamqp', error='librabbitmq.so.4: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='redis', error='libhiredis.so.1.1.0: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='cloud_auth', error='/usr/lib/syslog-ng/libcloud_auth.so: undefined symbol: _ZTVN10__cxxabiv117__class_type_infoE'
syslog-ng |Error opening plugin module; module='afsql', error='libdbi.so.1: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='afsnmp', error='libnetsnmp.so.40: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='afmongodb', error='libmongoc-1.0.so.0: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='geoip2-plugin', error='libmaxminddb.so.0: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='kafka', error='librdkafka.so.1: cannot open shared object file: No such file or directory'
syslog-ng |Error opening plugin module; module='afsmtp', error='libesmtp.so.6.2.0: cannot open shared object file: No such file or directory'
syslog-ng |WARNING: Your configuration file uses an obsoleted keyword, please update your configuration; keyword='stats_freq', change='Use the stats() block. E.g. stats(freq(1));', lo
cation='/etc/syslog-ng/syslog-ng.conf:8:3'