SELECT
    COUNT(tk.*) AS page_count
    
FROM
    tasks AS tk
   
    LEFT JOIN time_tracker AS tt ON  tt.element_id = tk.task_id
                                 AND tt.element_type = 2
                                 AND tt.general_time_flag = 0
                                 AND tt.end_time = '0000-00-00 00:00:00'
                                 AND tt.user_id = '##user_id##'
                                 
   

WHERE

    tk.project_id = '##project_id##'