phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78e6c85f80f96d10606606fb9ee40345' 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 ('78e6c85f80f96d10606606fb9ee40345', -1, 1766125065, 1766125065, 'c0a8100c', 30, 0, 0)

Line : 187
File : sessions.php