Hello.
Nobody knows how did you install it and what errors did you have.
Just check if the directory /usr/local/cwpsrv/modsecurity-crs/ exists.
here are the contents of my cwpsrv dir:
[root@webpanel ~]# cd /usr/local/cwpsrv/
[root@webpanel cwpsrv]# ls
apr build conf.d icons man owasp-modsecurity-crs-master.zip
apr-util cgi-bin error include manual
bin conf htdocs logs modules
hope this helps