Have shared my code below:
protected function credentials(Request $request) 
{ 
    $admin=admin::where('email',$request->email)->first(); 
    if(count($admin)) 
    { 
            if($admin->status==0){ 
                return ['email'=>'inactive','password'=>'You are not an active person, Please contact to admin']; 
                  } 
                else{ 
                        return ['email'=>$request->email,'password'=>$request->password,'status'=>1]; 
          } 
    } 
  return $request->only($this->username(), 'password'); 
}
When i run the code this error is displayed as:
"count(): Parameter must be an array or an object that implements Countable"