Unable to login to Labs since yesturday

Hi Team,
i am unable to login to Bigdata labs getting error"server refused to start a Shell/command" since yesturday
User id pandurang82.

also when tried to start consol getting below error.

500 : Internal Server Error

Error in Authenticator.pre_spawn_start: BlockingIOError [Errno 11] Resource temporarily unavailable: ‘jupyterhub-singleuser’
please help to fix the issue.,

Hi @Pandurang_Gaikwad,

Please try to log in now.