2019-02-21 11:13:09  802 (ERROR): The installation process detected that the server was in runlevel 5.
2019-02-21 11:13:09  803 (FATAL): The server must be in runlevel 3 before the installation can continue.

Essa mensagem será apresentada se você estiver iniciando a instalação do cPanel a partir de um console do OpenVZ.