why do i get these errors when i try to restart the ispconfig server:

[root@ns49 install_ispconfig]# /etc/init.d/ispconfig_server restart
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
Shutting down ISPConfig system...
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
/root/ispconfig/httpd/bin/apachectl stop: httpd stopped
ISPConfig system stopped!
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
Starting ISPConfig system...
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
/root/ispconfig/httpd/bin/apachectl startssl: httpd started
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory
shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory