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[Ellie Cartman <address@concealed>]

I recently installed Sympa 6.2.37b.2 on a VMWare slice under CentOS 6.10
I verified that user sympa owns all of the sympa directories.
User apache owns the web areas and has
 apache ALL = (sympa)  NOPASSWD: /usr/libexec/sympa/wwsympa.fcgi
in sudoers.

When I access the web server, I get an internal server error and
/var/log/http/error.log shows:

[Tue Dec 18 21:04:31 2018] [warn] [client x.x.x.x] (104)Connection reset
by peer: mod_fcgid: error reading data from FastCGI server
[Tue Dec 18 21:04:31 2018] [error] [client x.x.x.x] Premature end of
script headers: wwsympa-wrapper.fcgi

some relevant parts of httpd.conf


  <Location /sympa>
      SetHandler fcgid-script

      # Don't forget to edit lines below!
      Order deny,allow
      Deny from all
      Allow from all
  </Location>
  ScriptAlias /sympa /usr/libexec/sympa/wwsympa-wrapper.fcgi

  Alias /static-sympa /usr/share/sympa/static_content

RewriteEngine on
RewriteRule ^/?$ /sympa [R=301]


Is there something else I should be looking at?
thanks,
-ellie