[SR-Users] Error using newest Siremis and kamailio 5.0.3

Hello, I installed Siremis today from master branch alongside with Kamailio 5.0.3 and entering "XMLRPC Commands" menu gives me this error: [2018-03-01 12:28:34 (GMT)] An exception occurred while executing this script: Error message: #256, Unable to location template file system_internal_error.tpl. Script name and line number of error: /var/www/html/https/siremis/openbiz/bin/Resource.php:283 function: errorHandler ( 256, "Unable to location template file system_internal_error.tpl.", "/var/www/html/https/siremis/openbiz/bin/Resource.php", 283, Array(11) ) @ /var/www/html/https/siremis/openbiz/bin/sysheader.inc 117 function: userErrorHandler ( 256, "Unable to location template file system_internal_error.tpl.", "/var/www/html/https/siremis/openbiz/bin/Resource.php", 283, Array(11) ) @ function: trigger_error ( "Unable to location template file system_internal_error.tpl.", 256 ) @ /var/www/html/https/siremis/openbiz/bin/Resource.php 283 function: getTplFileWithPath ( "system_internal_error.tpl", "email" ) @ /var/www/html/https/siremis/openbiz/bin/BizSystem.php 560 function: getTplFileWithPath ( "system_internal_error.tpl", "email" ) @ /var/www/html/https/siremis/siremis/modules/service/userEmailService.php 108 function: SystemInternalErrorEmail ( Array(2), Null ) @ /var/www/html/https/siremis/siremis/modules/common/form/ErrorForm.php 34 function: Report ( ) @ /var/www/html/https/siremis/openbiz/bin/BizController.php 310 function: invoke ( ) @ /var/www/html/https/siremis/openbiz/bin/BizController.php 110 function: dispatchRequest ( ) @ /var/www/html/https/siremis/openbiz/bin/BizController.php 32 function: include_once ( "/var/www/html/https/siremis/openbiz/bin/BizController.php" ) @ /var/www/html/https/siremis/siremis/bin/controller.php 6 (I'm running PHP 7.0.27-0+deb9u1 and MariaDb Server version: 5.1.73 Source distribution) What is going wrong here? I found this online but I think this is already fixed on the Siremis master branch? https://lists.kamailio.org/pipermail/sr-users/2016-December/095373.html Cheers, Olli