CSS 3 validated theme.css throws Invalid CSS

Bootstrap Studio Help
1

I purchased the Bootstrap Phoenix theme v1.14.0 which is working fine in my app. Unfortunately when imported in Boostrap Studio, it throws Invalid CSS error. I used https://jigsaw.w3.org/css-validator/validator to validate it, erase the errors and got this response from the validator
validated_CSS

Still when I import it throws Invalid CSS. Any ideas? There is still some warnings inside, but no errors.
Would appreciate help.

2

If possible can you send us the theme css so we can investigate further? You can send it as an attachment to bugs@bootstrapstudio.io