phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './cnas_portal_2/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 ('502f7b73854afbe40ae3a201c52c6e30', -1, 1422679538, 1422679538, '3652a46a', 11, 0, 0)

Line : 187
File : sessions.php