phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '647a36b0c3c636fdedbc2723e23fd523' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('647a36b0c3c636fdedbc2723e23fd523', -1, 1714300973, 1714300973, '0315e929', -4, 0, 0)

Line : 187
File : sessions.php