phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '21d2135b7934e22f0225c031d9b0eb1f' for key 'PRIMARY'

INSERT INTO sub_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('21d2135b7934e22f0225c031d9b0eb1f', -1, 1715896406, 1715896406, '12778ef6', -4, 0, 0)

Line : 187
File : sessions.php