Tema ayarlarından font seçmediğim de font URL'si 404 oluyor, bunu nasıl kaldırabilirim?

Ayarlar: https://prnt.sc/pnt5ij
Analiz: https://gtmetrix.com/reports/dost3k.com/fODqFljo
Site: https://dost3k.com/
Analizdeki hata: https://prnt.sc/pnt6m0
Hatalı URL: https://fonts.googleapis.com/css?family=%3A400&subset=latin&ver=1.9.5
Tema: https://themeforest.net/item/gridlove-creative-grid-style-news-magazine-wordpress-theme/17990371

Not: Tema yapımcısına mesaj attım ancak durumu anlatamadım, şu şekilde cevap yazdı:
1-

On the screenshot you've sent I don't see any error, I can only see HTTP headers, but it does seem that your custom font is canceled.
Here is an article from our documentation which can help you with the custom fonts:
https://mekshq.com/faq/import-use-custom-fonts/?kb=66

You can try to repeat the process and try again.

Feel free to let me know if you have any further problems with it.

2-
You could try to change the font folder permissions. Please check this article https://www.wpbeginner.com/beginners-guide/how-to-fix-file-and-folder-permissions-error-in-wordpress

Also, regarding the error 404 and how to fix 404 error you could check this article https://www.wpbeginner.com/wp-tutorials/how-to-fix-wordpress-posts-returning-404-error