phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '0278c73b5ae7460a8cb11dcbf1a855dd' 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 ('0278c73b5ae7460a8cb11dcbf1a855dd', -1, 1767291556, 1767291556, 'd849d82e', -4, 0, 0)

Line : 187
File : sessions.php