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 ('60038228e977fd96538d28dc3d9624e2', -1, 1713514698, 1713514698, '1275b83e', -10, 0, 0)

Line : 187
File : sessions.php