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Does this only occur on the profile page or on all pages?
if it occurs on all pages it means you set an invalid path to fix this open the “core” folder in there is a config.php file open it and remove whatever is inside “path”
if it occurs on only the profile page it means the header.tpl file is missing to add it back open custom/templates/(template)/ and replace the profile.tpl file with the default file
Nothing is wrong, it only occurs with the profile section, I also tried to put the default one but nothing, I had reported on the template owner's discord and it sent me back here.
Can you please send me a link to your website? This can be in a private message if you prefer.
Thanks for sending me a link @ColuiChePinga - it appears your template's profile.tpl file (custom/templates/template/profile.tpl) is missing this line at the start: https://github.com/NamelessMC/Nameless/blob/v2/custom/templates/DefaultRevamp/profile.tpl#L1
The template author should be able to assist further.
thanks for the support