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 ('0f1cd15b73d89b585717d6bc5b48b76a', -1, 1425494613, 1425494613, '36d30e9f', -1, 0, 0)

Line : 172
File : sessions.php