phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c4f3665eefa739756110694c7db4f7d8' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c4f3665eefa739756110694c7db4f7d8', -1, 1752193910, 1752193910, 'd849d800', -4, 0, 0)

Line : 187
File : sessions.php