Module not found on the server

[Ali_Akhi]

I transferred my software, which was OJS 2.4.8.0 version, to another host, everything works fine, but in the Journal Manager>Import/Export Data and System Plugins section, I get Fatal error: Module not found on the server. I encountered in Unknown on line 0

1. login in via admin
2. Click on Journal Manager
3. and click on Import/Export Data and System Plugins
4. See this error Module not found on the server. I encountered in Unknown on line 0

OJS 2.4.8.0

[rcgillis]

Hello @Ali_Akhi,

Please note that version of OJS that you’re using is no longer maintained or supported by PKP. I recommend that you upgrade to the newest version of OJS. However, other community members may wish to offer assistance with your question.

You may find the following resources helpful in preparing for and performing the upgrade:

• Upgrading from OJS 2 to OJS 3 guide

• How to Upgrade guide

• Video tutorials on installation and upgrading

These resources will introduce you to OJS 3 and how it is different from OJS 2:

• OJS 3 Features Overview video

• Setting up a Journal and Editorial Workflow video tutorials in PKP School

• Learning OJS 3 user guide

• OJS 3 live demo site

You may need to seek professional support to upgrade your installation. This can usually be acquired from the service provider that hosts or maintains your software, such as the technical support team at your institution or a third-party hosting provider.

Best regards,

Roger
PKP Team

[Ali_Akhi]

thanks.
when turn on error display show this error:
NOTICE: Undefined variable: request (/home/kgsdadlo/public_html/plugins/generic/xmlGalley/XMLGalleyPlugin.inc.php:49)