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 ('2fd85194e6180ae05bb89eddc96a6e25', -1, 1713932611, 1713932611, '0389b9b4', -10, 0, 0)

Line : 187
File : sessions.php