phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '86478e812e13634fc573867d300ffc66' 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 ('86478e812e13634fc573867d300ffc66', -1, 1736036500, 1736036500, '12745946', 3, 0, 0)

Line : 187
File : sessions.php