Re: User issues.
This site is not meant for production support; what ‘service’ are you referring to anyway (obviously everyone here is volunters, though mainly enthusiasts).
Your posts aren’t including any technical details around your setup yet you’re expecting a resolution? What version of wordpress? What version of buddypress? What version of php/apache? Multisite enabled? What do you see in your error log? What has recently changed in the environment, plugins, themes, etc?