tooltips no longer functions on any page. Get a warning in inspector that it can't find the variable showTooltipwww.nesbitslandscapesupply.com/gravel.php

Hello Jefferis,
The tooltips are not working on your page as the jquery library include is missing from the head tags of your page.

Hi, which jquery file is the one it is supposed to link to? Also, I tried to reinstall the extension and get this error:

Okay, I found the problem with the tooltips. I had to put the link to the jQuery before the script in the header.
I am still having trouble with installing any extension. I checked the read/write options for the folder and admin and system have permissions to write.