Error while loading shared libraries: 'libpcre.so.0: cannot open shared object file: No such file or directory'

I got the same error, and I fixed the problem by running sudo ldconfig.

Execute below command and restart server again.

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

The message means what it says. The nginx executable was compiled to expect the PCRE (Perl-compatible Regular Expression) shared library to be available somewhere on LD_LIBRARY_PATH or specified in /etc/ld.so.conf or whatever equivalent library-locating mechanisms apply to your operating system, and it cannot find the library.

You will need to install PCRE - or configure your environment so that nginx will look for the PCRE library where it is installed.