No such command 'dialplan reload'

Hello. My asterisk CLI show following message after I type the ‘dialplan reload’ command. How fix it?

dmsCLI> dialplan reload
No such command ‘dialplan reload’ (type ‘core show help dialplan reload’ for other possible commands)
dms
CLI>

Thank you

You might try first on the CLI:

dmsCLI> module load pbx_config.so

And also a look in to /etc/asterisk/ directory could reveal issues with your modules.conf file.