The server was previously running 4.0.4 on 1.19 fabric just fine, but then aternos automatically updated the server to 4.0.8 and now the server says it requires game version 1.18.2 and some of the mods need forge loader.
Not that big of a deal, but it also takes much longer for the server to boot up, previously taking about 2 minutes and is now taking somewhere near 10 minutes.