I’m also having this problem, all required plugins are installed and updated. I also get the warning that v6.0 is required and I have 6.1, I also get the warning 1.1.1 Royal core plugin is required when it is installed? When i the update coming out, or can you fix my installation too?
Hey, if anyone else having this issue. Just solved it. Originally when I updated the plugin via the normal wordpress update procedure (clicking update). I had all these problems. I downloaded the Royal Core 1.1 directly from 8theme and re-installed it. This seems to fixed all the issues.