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 ('c14d7a9cf8e32b716377798878c37837', -1, 1714699698, 1714699698, '12db0e3f', -4, 0)

Line : 158
File : sessions.php