phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './forumcr/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 ('d4c839b4041fa9e01f70176dce820870', -1, 1432988341, 1432988341, '369ffa6e', 29, 0, 0)

Line : 187
File : sessions.php