Help. Sever mods don't work

[darkvako]

Sorry for my typing. I'm realy bad ad Englisch.

 

I run a server for a smal group of people.

So i like to keep it up to date.

 

 

I'm have some problems whit installing the nieuw update server files.

 

After installing the nieuw files none of the mods work any more.

 

The mod blocks ar still in het creative menu but if you place it down it transforms to a normal (minecraft standerd) block.

 

How can I fix this.

[darkvako]

Oke. Got it.

 

Was jusing the rong .jar file.