phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4b8146229aff0e0d2afa7b028cfccfb1' 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, is_robot) VALUES ('4b8146229aff0e0d2afa7b028cfccfb1', -1, 1769845334, 1769845334, 'd849d896', 0, 0, 0, '0')

Line : 187
File : sessions.php