500 Internal Server Error

I have researched this extensively. I have validated mysql permissions and user/pw. I can connect w/ sql from my mac w/ user/pw in my dbconfig.inc.php and z-ocsinventory-server.conf ...

any help is greatly appreciated

if I try to curl to the url http://server/ocsinventory I also get 500, same if I use browser..?

[Wed Dec 27 22:28:21 2017][debug] Ocsinventory unified agent for UNIX, Linux and MacOSX 2.3.1

[Wed Dec 27 22:28:21 2017][debug] Log system initialised (File)

[Wed Dec 27 22:28:21 2017][debug] --scan-homedirs missing. Don't scan user directories

[Wed Dec 27 22:28:21 2017][debug] Accountinfo file: /var/lib/ocsinventory-agent/http:__xxxx_ocsinventory/ocsinv.adm

[Wed Dec 27 22:28:21 2017][debug] OCS Agent initialised

[Wed Dec 27 22:28:21 2017][debug] Failed to load `/etc/ocsinventory-agent/modules.conf': 0

[Wed Dec 27 22:28:21 2017][debug] No modules will be used.

[Wed Dec 27 22:28:21 2017][debug] Compress::Zlib is not available! The data will be compressed with

             gzip instead but won't be accepted by server prior 1.02

[Wed Dec 27 22:28:21 2017][debug] sending XML

[Wed Dec 27 22:28:21 2017][debug] sending: <?xml version="1.0" encoding="UTF-8"?>

<REQUEST>

  <DEVICEID>ebc-79-2017-12-27-14-53-29</DEVICEID>

  <QUERY>PROLOG</QUERY>

</REQUEST>

[Wed Dec 27 22:28:21 2017][debug] =BEGIN=SERVER RET======

[Wed Dec 27 22:28:21 2017][debug] $VAR1 = '<?xml version=\'1.0\' encoding=\'UTF-8\'?>

<REPLY>

  <OPTION>

    <PARAM TIMEOUT="30" FRAG_LATENCY="10" TYPE="CONF" ON="0" PERIOD_LATENCY="1" PERIOD_LENGTH="10" EXECUTION_TIMEOUT="120" CYCLE_LATENCY="60" />

    <NAME>DOWNLOAD</NAME>

  </OPTION>

  <RESPONSE>SEND</RESPONSE>

  <PROLOG_FREQ>24</PROLOG_FREQ>

  <INVENTORY_ON_STARTUP>1</INVENTORY_ON_STARTUP>

</REPLY>

';

[Wed Dec 27 22:28:21 2017][debug] =END=SERVER RET======

[Wed Dec 27 22:28:21 2017][debug] PROLOG_FREQ has not changed since last process

[Wed Dec 27 22:28:22 2017][debug] Failed to load Ocsinventory::Agent::Backend::OS::MacOS::Video: Can't locate Parse/EDID.pm in @INC (you may need to install the Parse::EDID module) (@INC contains: /Applications/OCSNG.app/Contents/Resources//lib/ /Library/Perl/5.18/darwin-thread-multi-2level /Library/Perl/5.18 /Network/Library/Perl/5.18/darwin-thread-multi-2level /Network/Library/Perl/5.18 /Library/Perl/Updates/5.18.2 /System/Library/Perl/5.18/darwin-thread-multi-2level /System/Library/Perl/5.18 /System/Library/Perl/Extras/5.18/darwin-thread-multi-2level /System/Library/Perl/Extras/5.18 .) at /Applications/OCSNG.app/Contents/Resources//lib/Ocsinventory/Agent/Backend/OS/MacOS/Video.pm line 4.

....

    </USERS>

  </CONTENT>

  <DEVICEID>ebc-79-2017-12-27-14-53-29</DEVICEID>

  <QUERY>INVENTORY</QUERY>

</REQUEST>

[Wed Dec 27 22:27:13 2017][error] Cannot establish communication : 500 Internal Server Error