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, session_admin) VALUES ('48aa2e0773b3423585ee8d16b6f443c5', -1, 1713309281, 1713309281, '12bc28cf', -4, 0, 0)

Line : 187
File : sessions.php