phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8d42d0c18c849be890d0ea4eba275844' 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 ('8d42d0c18c849be890d0ea4eba275844', -1, 1766436767, 1766436767, 'd849d820', -9, 0, 0)

Line : 187
File : sessions.php