DirectAdmin CustomBuild versions.txt is getting old

I got following email from DirectAdmin server.

New Message: CustomBuild versions.txt is getting old on s1.serverok.in

A new message or response with subject:

CustomBuild versions.txt is getting old on s1.serverok.in

has arrived for you to view.
Follow this link to view it:

http://s1.serverok.in:2222/CMD_TICKET?action=view&number=000000967&type=ticket

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Automated Message Generated by DirectAdmin 1.52.1

Do Not Reply.

DirectAdmin is telling you to update your server.

You need to login to SSH as user root. Then run following commands.

cd /usr/local/directadmin/custombuild
./build update
./build all d
./build rewrite_confs