phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './why9work_phpbb1/phpbb_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('9f4eda96e0ef6743be8f3a4854daea37', -1, 1455443612, 1455443612, 'adf5363d', 0, 0)

Line : 158
File : sessions.php