In every and any new topic in this section, we would like you to minimally put into your post the following:
The problem itself (i.e. what it does, what you see);
The error message you get (if applicable);
What you already tried to fix it;
Your config (if relevant to the problem, which most likely is);
Your MC version;
If you use any API (most likely Forge if you have one).
AND PLEASE, ONCE YOU FIND A SOLUTION TO YOUR PROBLEM, POST IT IN YOUR TOPIC.