Nothing... That is a just notice not an error. Basically, it is telling you the command for permsize is no longer used by java 8. But it is embedded in the launcher and you can't get rid of it if you use the twitch/curse launcher. So just ignore it.
Head over to this part of the forum - create a support request, answer all questions in the form that shows and provide a log (instructions for getting log can be found here: http://support.feed-the-beast.com/faq/ ):when I try to load the beyond mod pack it says Error: java.lang.OutOfMemoryError: GC overhead limit exceeded what can I do.
There's a whole thread where they discuss things like this over in "Ask a Simple Question"... They even get replies from pack devs as to why/why not a given mod is used in a pack. The category this thread is in (FTB News) is for news from FtB.Idk where else to suggest this, but might I suggest adding Mekanism to FTB Beyond? It has a stable 1.10.2 release, and it's really quite nice. Many people on the server I play would love to see Mekanism in Beyond. It's a personal favorite, myself. It's not too heavy, either, soo
Just a suggestion, since you've been pretty regularly updating Beyond with new mods for everyone to play with.
Try asking in the "Ask a simple question" thread in "General Chat"... This area is supposed to be for FtB news, and anyone who could answer your question almost certainly reads the other thread. (I don't play on a server, so I have no idea).Does anyone know how I can add a mod to the server? When I add extracells 2 to the client it works fine in single player but of cause in the server it tells me the tooltip is missing which I assume that is because my friend doesn't have it installed. Of cause when we try to install it, it causes the server to crash.