phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4689cb304003ea6daf6fca5a992ebea1' 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 ('4689cb304003ea6daf6fca5a992ebea1', -1, 1771475792, 1771475792, 'd849d813', 1, 0, 0)

Line : 187
File : sessions.php