phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '52a12fd78489b0160665c295046e95e1' 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 ('52a12fd78489b0160665c295046e95e1', -1, 1769284665, 1769284665, 'd849d814', -4, 0, 0)

Line : 187
File : sessions.php