phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff117d7d6bc915517350671e4f0be186' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ff117d7d6bc915517350671e4f0be186', -1, 1766502310, 1766502310, 'd849d8a2', 5, 0, 0)

Line : 187
File : sessions.php