phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '27dd7d4f5a1c4e1f3cb07fa5f5153c6d' 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 ('27dd7d4f5a1c4e1f3cb07fa5f5153c6d', -1, 1770816996, 1770816996, 'd849d876', 1, 0, 0)

Line : 187
File : sessions.php