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 ('c374c3d12eb8d2cc2ffb705f49d4535f', -1, 1713993332, 1713993332, '038f04b5', -8, 0, 0)

Line : 187
File : sessions.php