phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './pocketpctalk_bb/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 ('adda4b4eacf7fd5039e9fc85a1e6f687', -1, 1508568137, 1508568137, '365c8dd3', 58, 0, 0)

Line : 187
File : sessions.php