cannot export or import

Hi,

I am a newbee, I just installed the Vdata. I tried to export or import, but everything failed. It shown :

0 syntax error, unexpected '->' (T_OBJECT_OPERATOR)
/var/www/html/plugins/vdata/custom/custom.php:11677

What is that mean? How to fix it?

I m using Joomla 3.8, Mysqli.

Hi,
Please let us know at which particular step you are getting the mentioned error?

Thanks Daniel. The vData was successfully installed; I can see the Dashboard, config, profiles, import...etc. The config is set and save successfully also.

But when I click the "Continue" button in import or export , 0 syntax error, unexpected '->' (T_OBJECT_OPERATOR) message is appeared. Not only import and export has error but other function as well. I turned on the debug function and detail are shown as below:

0 syntax error, unexpected '->' (T_OBJECT_OPERATOR)
/var/www/html/plugins/vdata/custom/custom.php:11677
Call stack
# Function Location
1 () JROOT/plugins/vdata/custom/custom.php:11677
2 Joomla\CMS\Plugin\PluginHelper::import() JROOT/libraries/src/Plugin/PluginHelper.php:182
3 Joomla\CMS\Plugin\PluginHelper::importPlugin() JROOT/administrator/components/com_vdata/views/export/view.html.php:34
4 VdataViewExport->display() JROOT/libraries/src/MVC/Controller/BaseController.php:672
5 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/administrator/components/com_vdata/classes/mvc/controller.php:18
6 VDController->display() JROOT/administrator/components/com_vdata/controller.php:36
7 VdataController->display() JROOT/administrator/components/com_vdata/controllers/export.php:41
8 VdataControllerExport->exportready() JROOT/libraries/src/MVC/Controller/BaseController.php:710
9 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/administrator/components/com_vdata/vdata.php:68
10 require_once() JROOT/libraries/src/Component/ComponentHelper.php:382
11 Joomla\CMS\Component\ComponentHelper::executeComponent() JROOT/libraries/src/Component/ComponentHelper.php:357
12 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:101
13 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:159
14 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:204
15 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/index.php:51

Thanks for your help

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excuse me, what kind of backend ?