I configured the plugin as far and now I wanted to look at them in the backend but get an error message:
Front End User Registration (sr_feuser_register): Required RSA auth backend not available.
Under Google I find no useful items.
I hope someone can help me.
You can follow this steps:
1) Check Dependencies or required extensions for sr_feuser_register
2) Check Conflicts extension, You have to disable or uninstall those extensions which is conflict with sr_feuser_register
3) Delete entire "typo3temp" folder
4) Clear install tool cache
Note: rsaauth extension is one of required extension for sr_feuser_register. If you are not able to login from FE, you can change FE=> "loginSecurityLevel" => 'normal' in your "LocalConfiguration.php" file.