phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '254d665a8ece2b93e161f7eb7c620d92' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('254d665a8ece2b93e161f7eb7c620d92', -1, 1768445765, 1768445765, '7f000001', -4, 0, 0)

Line : 187
File : sessions.php