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 ('a74fdd1eac04e786855d26d84b8b833d', -1, 1714355330, 1714355330, '038cb993', 18, 0)

Line : 158
File : sessions.php