phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1194 Table '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 ('45565739c7a9fc2179319c4e387319b6', -1, 1397947981, 1397947981, 'ae8150a6', -1, 0, 0)

Line : 172
File : sessions.php