phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './nixforums_phpbb/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, session_admin) VALUES ('1d88372f0df1f6e78850aa588a6fe702', -1, 1441182651, 1441182651, '1716fa71', 15, 0, 0)

Line : 180
File : sessions.php