After installing your plugin, the following error shows up..
( ! ) Fatal error: Class ‘Ext_Post_Menus’ not found in E:\wamp\www\wordpress\wp-content\plugins\adminbar-post-menus\AdminbarPostMenus.php on line 105
Had to manually delete your plugin, since all access to the dashboard was gone..
https://www.ads-software.com/extend/plugins/adminbar-post-menus/
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