phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'df8d5c64a68fa5e0d0448aacfe0397de' 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 ('df8d5c64a68fa5e0d0448aacfe0397de', -1, 1752497337, 1752497337, 'd849d837', 1, 0, 0)

Line : 187
File : sessions.php