phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9ebedee2b152298643761a14041d9acf' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9ebedee2b152298643761a14041d9acf', -1, 1779040174, 1779040174, 'd849d956', -9, 0, 0)

Line : 187
File : sessions.php