I have installed OCS and GLPI two years ago.But today,I don't why can't success

I have installed OCS and GLPI two years ago.But today,I don't why can't success.
 
 Win7 Agent:Service encounter error <OCS Inventory NG Agent encounter an error (exit code is 4 => Failed to talk with Communication Server)>.
 Server:Http:Access:192.168.74.136 - - [15/Feb/2017:16:04:38 +0800] "GET /ocsinventory/deploy/label HTTP/1.1" 400 306 "-" "OCS-NG_WINDOWS_AGENT_v2.3.0.0"
                    192.168.74.136 - - [15/Feb/2017:16:04:38 +0800] "POST /ocsinventory HTTP/1.1" 500 614 "-" "OCS-NG_WINDOWS_AGENT_v2.3.0.0"
             Error:[Wed Feb 15 16:03:54 2017] [notice] caught SIGTERM, shutting down
                   [Wed Feb 15 16:03:59 2017] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
                   [Wed Feb 15 16:04:00 2017] [notice] Digest: generating secret for digest authentication ...
                   [Wed Feb 15 16:04:00 2017] [notice] Digest: done
                   [Wed Feb 15 16:04:00 2017] [notice] Apache/2.2.15 (Unix) DAV/2 PHP/5.5.38 mod_perl/2.0.4 Perl/v5.10.1 configured -- resuming normal operations
                   [Wed Feb 15 16:04:22 2017] [error] [client 192.168.74.136] mpxs_Apache2__RequestRec_print: $r->print can't be called before the response phase at /usr/local/share/perl5/Apache/Ocsinventory  /Server/Communication.pm line 182.\n
                   [Wed Feb 15 16:04:38 2017] [error] [client 192.168.74.136] mpxs_Apache2__RequestRec_print: $r->print can't be called before the response phase at /usr/local/share/perl5/Apache/Ocsinventory/Server/Communication.pm line 182.\n
         
z-ocsinventory-server.conf
  # Master Database settings
  # Replace localhost by hostname or ip of MySQL server for WRITE
  PerlSetEnv OCS_DB_HOST localhost
  # Replace 3306 by port where running MySQL server, generally 3306
  PerlSetEnv OCS_DB_PORT 3306
  # Name of database
  PerlSetEnv OCS_DB_NAME ocsweb
  PerlSetEnv OCS_DB_LOCAL ocsweb
  # User allowed to connect to database
  PerlSetEnv OCS_DB_USER root
  # Password for user

  PerlSetVar OCS_DB_PWD inmycontrol

dbconfig.inc.php
<?php
define("DB_NAME", "ocsweb");
define("SERVER_READ","localhost");
define("SERVER_WRITE","localhost");
define("COMPTE_BASE","root");
define("PSWD_BASE","inmycontrol");
?>
~
~

Thank u very much!