phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a78eae060739e038c7c7f1d93724c4c5' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('a78eae060739e038c7c7f1d93724c4c5', -1, 1769884344, 1769884344, 'd849d82b', -2, 0)

Line : 180
File : /www/includes/sessions.php