phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ae038989c86d587142504d4d3171bb51' 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 ('ae038989c86d587142504d4d3171bb51', -1, 1770979627, 1770979627, 'd849d809', -4, 0, 0)

Line : 187
File : sessions.php