phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './private_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 ('695019684cbd3304b27fd29655f32c80', -1, 1422157575, 1422157575, '365b2d8f', 7, 0, 0)

Line : 187
File : sessions.php