Store - View Plugin: Facebook Connect

Wouldn't load for me I got this error when I clicked on install.: Error 500
Internal Server Error.
If you are the site admin, click here for details (+)
Something went wrong!
To get the error details follow these steps:
- Open ow_includes/config.php file and set DEBUG_MODE to true
- Reproduce your last action.
Error details:
Type: Exception
Message: Failed opening required 'C:\xampp\htdocs\ow_plugins\fbconnect\vendor/autoload.php' (include_path='C:\xampp\php\PEAR')
File: C:\xampp\htdocs\ow_plugins\fbconnect\init.php
Line: 32
Trace: #0 C:\xampp\htdocs\ow_system_plugins\base\bol\plugin_service.php(688): include_once() #1 C:\xampp\htdocs\ow_core\plugin_manager.php(133): BOL_PluginService->includeScript('C:\\xampp\\htdocs...') #2 C:\xampp\htdocs\ow_core\plugin_manager.php(104): OW_PluginManager->initPlugin(Object(OW_Plugin)) #3 C:\xampp\htdocs\ow_core\application.php(128): OW_PluginManager->initPlugins() #4 C:\xampp\htdocs\index.php(57): OW_Application->init() #5 {main}Wouldn't load for me I got this error when I clicked on install.: Error 500
Internal Server Error.
If you are the site admin, click here for details (+)
Something went wrong!...See more

We also made a mistake today, someone within our team installed the Facebook connect plugin without making a backup, with the result that the website is unfortunately no longer accessible.
Now find out how we can solve it manually on the server.
We don't think a correct folder has been created for the plugin, perhaps this folder can be renamed to OW_PLUGINS and OW_STATIC/PLUGINS plus in phpMyAdmin.?
Or perhaps we can delete the folders.?We also made a mistake today, someone within our team installed the Facebook connect plugin without making a backup, with the result that the website is unfortunately no longer accessible.
Now ...See more

Rob the way I fixed the problem was to delete the Facebook folder from the ow_plugins folder.

That is what we also thought about and have now done, but there is always mess left behind, such as in our case the "Text keys".