PowerNukkit is a modified version of Nukkit, a Bedrock Edition Minecraft server software made in Java, which adds support to a huge amount of features like water-logging, all new blocks, more plugin events, offhand slot, bug fixes and many more.
If you are just a user of the panel and you are unable to access the admin panel to install eggs, you may ask for an admin to install the egg or manually download PowerNukkit from this page and replace the original server jar on your container. But if this is also not allowed by your hosting provider then you must contact them to get support.
If you find any bugs or have any suggestion, please use the
GitHub Issues system preferably.
But if you can't or have difficulties using it, you can also use the
PowerNukkit Community forums or
have a talk at our Discord guild.