phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './socal_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 ('1ba72491d1b52f2f0a02eb91f1edf9f6', -1, 1435807998, 1435807998, 'b95de50a', 17, 0, 0)

Line : 187
File : sessions.php