phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8768a6a3665ca74df96708849d34a2e3' 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 ('8768a6a3665ca74df96708849d34a2e3', -1, 1752903384, 1752903384, '00000000', -2, 0, 0)

Line : 187
File : sessions.php