phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 145 Table './phpBB/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 ('1f7f4622eaeb4060c902596f93620930', -1, 1493054509, 1493054509, '36a108cd', 14, 0, 0)

Line : 187
File : sessions.php