phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '250e6a6f75df075139021c71d7590815' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('250e6a6f75df075139021c71d7590815', -1, 1770862151, 1770862151, 'd849d802', 2, 0)

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