phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('1c0b4df63f1128f26803b0b8b6b65661', -1, 1714704129, 1714704129, '038e626c', 20, 0)

Line : 158
File : sessions.php