phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0f8012639548d9e8c3784699974b18e5' 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 ('0f8012639548d9e8c3784699974b18e5', -1, 1769968422, 1769968422, 'd849d822', -4, 0, 0)

Line : 187
File : sessions.php