phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c7788067c9bff8ea88cf33285bb8cf29' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c7788067c9bff8ea88cf33285bb8cf29', -1, 1765888850, 1765888850, 'd849d89b', -4, 0, 0)

Line : 187
File : sessions.php