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4. https://www.sharetextures.com/
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3. https://texturebox.com/
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2. http://megascans.se/
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1. https://www.cgbookcase.com/
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Maybe due to weak computer, heavy file, corrupted file, too big map tiles (hundreds of MB for example), too large map tiles when the file is heavy (grass maps for some mountains for example), install many plugins too lead to conflict, unstable SU crack error......
To fix this error, you should:
_Install a few plugins. Only install plugins that you use and know well about. Whatever you don't use or don't know what it means, don't install it.
_Manage files well for components and layers. Avoid turning on the entire drawing while editing a small part.
_Avoid map tiles for a surface that is too large. Avoid using too heavy maps.
_Buy the copyright (This must be difficult :)))))
_Yes.... handsome :)))