Q:

Placing a sign, given from a generator, not working

I am using the Animated Scoreboard sign generator. The problem is that when I place the sign that the generator gave me, the sign looks like this: 
As you can see the content is "" instead of Click Here. What am I doing wrong?
Note: I use Minecraft 1.9 with OptiFine 1.9 pre 04.
Also note: I am doing this on a vanilla server.
The command I use that is generated can be found here: http://pastebin.com/VehNSpnx

A:

If you are using the 1.8 version of Minecraft then the problem could be that  you are using the 1.9 version of Sign Generator.
I recommend using https://minecraftcommand.science/command-sign-generator for any 1.8 signs.
Another problem could be mods you have downloaded.  If you have an older version of Minecraft and you are using a higher version mod/ or vice versa then that could be causing the problem.  Both are trying to use different versions of Minecraft causing disruptions.

