phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '7dcf6e2458c3f823d39bdb336b9a642b' for key 'PRIMARY'

INSERT INTO oldforum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7dcf6e2458c3f823d39bdb336b9a642b', -1, 1752711952, 1752711952, 'd849d891', -9, 0, 0)

Line : 187
File : sessions.php