Big problem with the login page!

[DaSilva]

I have a big problem with the login page.
After I accept the certificate, the Browser loads this instead of the login page:

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%5g�l����d���e?��G�|~���,7M���ȫԧ�ut������y�AFx/�xB�-R�? υ��������!(# e�Rj�3�N&�p�o���6��*�k���i�O���r�e�)9�$�-�C�{9��_����rF
˶�t�]˘��a��8�o�._5�Es�[��/���@W=��ʩ ��,��d|j�QZ���a:�Lլ����t���W�A�^4�����U{�@��������9��B��lR�����C~q;�AXn�a�a��e=�s ς�{�f5H�O-�e�d�}z�Zw��+X4%ϐPmN�!�'�ڀ/��#�h�1gq��j�#�0(��"~�({:��+��CPZW�m� ����iژ��J��)<��??���c�ǥ<�oy2>BБPt��*)�x/��m�??��=b0��$%�1J ��9��)<��?R���㝒JSu�uǍ�(�X�1��.[�#�ӉmQ��L����k�߯@Q3�Ÿ���! �Fo��E��>�4��6��4r5;�M �*'� �N�@_��OGB&��x�]�\8a'Z�~@.�<^F��"�g�f߯��^�����앵�,� k���R�ug�_�v�ugm�el��� >ܼhd#��u��ғ�L���wl[���j���<��#l�Z��ck3p'���'��^gZ���V�z�?{�>e���R�ug�?��jɒH�� $7 �F���

What can I do?

 

[OlegB]

What version of Plesk have you got?

 

[DaSilva]

7.5.6

 

[Gris@]

Please use right encoding and show the message to us.

 

[DaSilva]

I have added a screenshot.
It is only a part of the whole message.