phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '780320e7367f440e6cbc2c77f9b13889' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('780320e7367f440e6cbc2c77f9b13889', -1, 1770106990, 1770106990, 'd849d8a9', -9, 0)

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