Problem
The plugin cannot be installed or updated
Troubleshooting
1. The installation cannot be completed or "hangs"
In this case, an internal error likely occurred during installation or update.
A known source of errors during plugin installation is Shopware's own "Security Plugin". Under certain conditions, it attempts to prevent errors such as "Fatal error: Cannot redeclare class Shopware\Models\XXX in /engine/Shopware/Models/"
In this case, please simply disable the Shopware Security Plugin temporarily. After successfully installing the plugin, you can re-enable the Security Plugin.
Advanced Troubleshooting
If the steps mentioned above do not resolve your issue, please read the article on Advanced Troubleshooting.