phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './illustra_phpbb1/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 ('388eea7a6c63da21a8c732211119696f', -1, 1397637977, 1397637977, '36c614d7', -1, 0, 0)

Line : 187
File : sessions.php