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 ('02b79aeebea8f16ab7a5f9a1d4d932be', -1, 1455421392, 1455421392, 'b8488aff', 1, 0, 0)

Line : 189
File : sessions.php