phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '08609c7964fda5c2a1b7ab6ca4d853b9' 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 ('08609c7964fda5c2a1b7ab6ca4d853b9', -1, 1759767283, 1759767283, 'd849d8ac', -4, 0, 0)

Line : 187
File : sessions.php