error: find_xor_key_list, could not find key

[Altar82]

hi,i tried to get key from my oven but i get this error

error: find_xor_key_list, could not find key

if i try with http://192.168.188.51/http-read.json?encrypted=1 i get this key:

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

but if i try to trasform it into ascii,i get illegible characters like:

�eokF��
���#�� @r�onnkN>��5� �J_@UENaghdG
���
���� O[O S@Jkhal@6�����$�AXD(7$)@HjhedC?���1��F]@\OMojkD5� ��7� �O[OUANklkaG2��� O[OUANklkaG1 �������!�����@^ERNAlglj@5�� �����NWC]GOolokJ5��� CWGS@Jkhal@0���>��GY@VDNeokmE6 �?��D\@[QRFKofdhO1���5��7������GY@VDNeokmE& ��6����@RGRFKofdhO7�������0�� =����@\DT]PQQENaghdG��DXJTPFKofdhO� D\@Y\@HjhedC�@\DSZGNimkeO5���2� ��GXFW@@kdlA$1���GXFWRX/CAhikoD��GXFW@agh�hi�

can i do something?
ty so much