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 ('f1065b80930dc8b7d13479f8f4d013be', -1, 1714613527, 1714613527, '0390976a', -9, 0)

Line : 158
File : sessions.php