ERROR Error processing element Queue: CLASS_NOT_FOUND

Hello

So I've been using CraftBukkit to host a server for me and my friends for quite a while now. But today, something strange happened. When I tried running the server, this message appeared in the terminal instead of the regular one:
I'm not sure why this has happened and I'm not sure how to fix it.
Does anyone here know a possible solution?

Thanks in advance

Luke25361

 

I've read up on this, some users have had trouble with this error while running 1.7.2. Try updating to a newer version and see if that fixes your problem.

 

Do you mean a new version of CraftBukkit or a new version of Minecraft?
If I have to update CraftBukkit, it'll be a shame because the majority of the plugins I use are only compatible with 1.7.2 and below.

Thanks for the reply



Luke25361

 

Hi Luke,
Yeah it's a problem with 1.7.2. If you're plugins are compatible with 1.7.2 and below try going with an older version instead of a newer version. 1.7.1, 1.7, etc.

 

Ah, ok. Thank you for your help!

Luke25361