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 ('f76a016ca1f88faaa17dfbc99d971036', -1, 1425227645, 1425227645, '365924e5', 64, 0, 0)

Line : 172
File : sessions.php