Urgent help needed: search functionality and map stopped working and image not s

Hi,

In the process of optimization, we have seen there is page speed issue hence, we tried to the following:

1> deactivated the GD Booster.
2> uploaded the WP super cache and super mini cache
3> Autoptimize
4> Activate both new plugin ( No changes were done at backend).

Result that only home page was working and none of the category, tags or search pages were working.

then done the followig:

1> Deactivated the plugins: WP super cache, Autoptimize
2> activated the GD booster

But after this following issue started:

1> Home page search functionality stopped working
2> listing page image and map stopped working
3> Website is too slow now

Pls look into urgently