phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './nvmu/phpbb2_sessions' is marked as crashed and should be repaired

INSERT INTO phpbb2_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('05eb70849b75637ccc846ff727907d93', -1, 1371868802, 1371868802, '6dcdf871', 41, 0, 0)

Line : 187
File : sessions.php