phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('88ed2e829bd255a8d92a0b9af1f7f8b0', -1, 1711690913, 1711690913, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php