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 ('5b961374819ae4ddfcc2b8ade13974b1', -1, 1472046500, 1472046500, '3650e3ed', 0, 0, 0)

Line : 189
File : sessions.php