JS/CSS duplicate load and 404 Error [closed]

Sorry to hear this.

That is a lot of plugins!

Since you have no worries installing/using so many, I have to ask: have to tried using a plugin to minimize and impact performance of Javascript and CSS?

Might be worth trying something like this just to see how it impacts overall performance: https://wordpress.org/plugins/autoptimize/

Also, have to you looked into memory usage on the server?

Might be worthwhile to know with certainty what is slowing things down so much. I would recommend that you start there.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)