phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd9eb0995bbc4dab09508394a7b7fd44d' 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 ('d9eb0995bbc4dab09508394a7b7fd44d', -1, 1773935147, 1773935147, 'd849d83f', -9, 0, 0)

Line : 187
File : sessions.php