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 ('9dd8278bdc188c20fbb594a9f130e012', -1, 1713922612, 1713922612, '038b5217', 6, 0, 0)

Line : 187
File : sessions.php