phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './twcsg_phpb1/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 ('2a7886a00bf671888074d2b33aa2e0c5', -1, 1425352083, 1425352083, '365cf5b9', -1, 0, 0)

Line : 172
File : sessions.php