failed to synchronize registry data from server

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    So I am trying to create a pixelmon server but have been unable to connect due to the error message "Failed to synchronize registry data." I think it may be because I do not have all the mods required installed but I am having a problem locating them outside of pixelmon 1.16.6-9.0.2 universal. If anyone could help that would be great. Here is the log if that helps https://mclo.gs/J4rTwUy

    Share your client log

    1. open your minecraft installation path
    (enter %appdata%/.minecraft in the file explorer )
    2. open the logs folder
    3. open the "latest" or "latest.log" file with a text editor
    4. copy and paste the content of the file to https://mclo.gs/
    5. send the link here

    :aternos: Hello Everyone :aternos: