phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '607d231d9053d45511e9c1add95babec' 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 ('607d231d9053d45511e9c1add95babec', -1, 1728138478, 1728138478, '7f000001', 1, 0, 0)

Line : 187
File : sessions.php