phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ff12d466f518f195297199f3d7bbcd11' 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 ('ff12d466f518f195297199f3d7bbcd11', -1, 1714312781, 1714312781, 'c0a80201', -4, 0, 0)

Line : 187
File : sessions.php