phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a9bc2b3771f1d27b88945828e937ceef' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a9bc2b3771f1d27b88945828e937ceef', -1, 1715877504, 1715877504, '039166f9', -8, 0, 0)

Line : 187
File : sessions.php