Image not accepted (quality problems vector image)

Hello everyone, I uploaded vector images and they were all rejected due to quality issues, does anyone know what could be wrong with the images?

Moderation wrote this: 

The file contains one or more of the following issues.

A vector file contains a bitmap/bitmap, and vector files must not contain bitmap elements.
The compression ratio of the JPEG preview file was set too high, so there were problems with the textures in the file.
The resolution of the preview JPEG file must be at least 5000 X 3000 (15 million pixels)
When exporting the vector file to JPEG, anti-aliasing was not used, so there were problems with the lines in the JPEG file. 

But I don't think my pictures have anything from that list

Thanks in advance everyone!!