Hi @ram, without much context it looks like you may be attempting to side load a plugin that is compressed into a zip file. Any side load into a Server instance should be a .jar or .obr file. The last release this plugin is in fact a .jar file. Can you download the plugin from Atlassian Marketplace and side load that file in your product's Manage Add-ons area instead, or better yet go into the Find New Add-ons area (both are within your product's admin) and install it from there. The latter route is clean and quick single click sort of process.
Hope that helps, -nick wade
Head of Ecosystem Business
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