phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4b85d0649622c7f11388901e5392b85a' 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 ('4b85d0649622c7f11388901e5392b85a', -1, 1770914474, 1770914474, 'd849d88f', -4, 0, 0)

Line : 187
File : sessions.php