a) Your website has screenshots that include Kodi logo's. Under the Kodi trademark rules if you are modifying Kodi in any way (one byte of code changes) you MUST either seek formal permission from the Kodi board for your changes (which will be refused automatically for anything related to piracy or pre-installing add-ons) or you MUST fully rebrand to remove all references to Kodi. As LibreELEC ships Kodi branded as Kodi, you should assume and apply the same rules to the entire LibreELEC distro (rebrand and remove all references to LibreELEC).
b) Your website appears to be offering managed bundles of links to "movies, tvshows" etc. "for the community" which is wording that we normally see on IPTV streaming and Kodi addon sites associated with content piracy. LibreELEC has zero desire to be associated with piracy in any way, so if you cannot figure out how to embed your addons in our distro image (or even how to use GitHub, as per your PM) we are delighted and we offer no assistance.
If we are wrong (because the website I have seen is light on information) please feel free to provide more information on your player/service. It's not what is written on the website that is suspicious. It is what is not written, i.e. If you were providing a legitimate streaming service you would want to positively attract attention and openly promote things in a very different way.