Syslog-ng send message in topic kafka

Installing and Using OpenWrt
1

OpenWrt v.22.03.6 installed syslog-ng v.4.7.1-1.
In the settings file of receiving and sending messages settings for kafka are made:

destination d_kafka {
    kafka(
        bootstrap-servers("10.10.10.100:9092")
	topic("mesh_logs")
	key("${HOST}")
        disk-buffer(
	    mem-buf-size(10000000)
	    disk-buf-size(50000000)
	    reliable(yes)
	    dir("/tmp/disk-buffer")
	)
   );
};

The kafka dependencies are connected in the main configuration file:

@define kafka-implementation kafka-c

When running syslog-ng, it gives an error:

[2024-08-13T09:54:58.616813] 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));', location='/etc/syslog-ng.d/mesh_statistics.conf:10:2'
Error parsing config, syntax error, unexpected LL_IDENTIFIER, expecting '}' in /usr/share/syslog-ng/include/scl/kafka/kafka.conf:25:5-25:12:
20      #
21      #############################################################################
22      
23      @define kafka-implementation kafka-java
24      block destination kafka(...) {
25---->     `kafka-implementation`(`__VARARGS__`);
25---->     ^^^^^^^
26      };

Included from /etc/syslog-ng.d/mesh_statistics.conf:36:5-46:5:
31              create_dirs(yes)
32              );
33      };
34      
35      destination d_kafka {
36---->     kafka(
36---->     ^^^^^^^
37---->         bootstrap-servers("10.10.10.100:9092")
38----> 	topic("mesh_logs")
39----> 	key("${HOST}")
40---->         disk-buffer(
41----> 	    mem-buf-size(10000000)

Included from /etc/syslog-ng.conf:64:1-64:1:


syslog-ng documentation: https://www.syslog-ng.com/technical-documents/list/syslog-ng-open-source-edition
contact: 
	GitHub Project: https://github.com/syslog-ng/syslog-ng
	Chat with the Developers: https://gitter.im/syslog-ng/syslog-ng

I think that modules for kafka support are not installed, but how to install them I can not understand.
Please help me to understand the problem.

2

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button:
grafik
Remember to redact passwords, MAC addresses and any public IP addresses you may have:

ubus call system board
3 
{
	"kernel": "5.10.201",
	"hostname": "URP-002",
	"system": "Qualcomm Atheros QCA9558 ver 1 rev 0",
	"model": "Ubiquiti Rocket 5AC Lite",
	"board_name": "ubnt,rocket-5ac-lite",
	"rootfs_type": "squashfs",
	"release": {
		"distribution": "OpenWrt",
		"version": "22.03.6",
		"revision": "r20265-f85a79bcb4",
		"target": "ath79/generic",
		"description": "OpenWrt 22.03.6 r20265-f85a79bcb4"
	}
}