Homebrew Bug Possibly

So, I have been working on this homebrew Druid subclass with the 5.5e version. I think the system is thinking I am using the old 5e version of the class build structure and giving me the error that I am not following the class leveling system. Would someone be able to look it over and check?

The Circle of Summons Class for Dungeons & Dragons (D&D) Fifth Edition (5e) - D&D Beyond

Yeah, I been knowing of this issue for a while. I have a few homebrew that I would publish but it keeps breaking when I was going to and I just don't worry about it anymore. I was planning on publishing it and then having a bigger spread of people playing it to test it out in other campaigns and tell me what they like and don't like to upgrade on it.

My campaign already has about a good 20 or so ish homebrew subclasses I worked on.

So, still trying to figure this out because I just checked the structure format for the other 5.5e Druid homebrew classes that are also published and I follow the same format:

• 2 or 3 level 3 class features
• 1 level 6
• 1 level 10
• 1 level 14

This is the correct format that they decided to follow for the 2024 version of the Druid subclasses, correct? If I am doing the level structure wrong still for the system let me know. Because I even followed and redid it back over using the 2024 version of a Druid subclass as the template and still being told it is incorrect. After saving the homebrew over and trying to redo it multiple times.

Bugger...well that sucks. I really like this class I made and wanted to get others to test it in their own homebrew campaigns to get feedback from other DMs and players lol. Well I will only hope that it gets fixed later and I can get it approved.