Most likely it's a plugin that's preventing you from doing such actions, simple as that. You should ask the server admins/mods if that's the case. If not, I would honestly have no idea what would be causing that other than a slight derp up on your part (EX: Something's blocking the chest, door, blah blah..)

No reason to go to a different server (Unless of course you don't want to be on a server with these kinds of plugin), and no reason to force update your Minecraft client.

I recommend deleting the minecraft file you have now and downloading a new one from minecraft.net.
You probably messed something up if the problem still continues i would go to a different server because they might be using protection plugins