Hi,
sorry but I really does not understand.
What did you do? Please explain, or reverse what was done!
1. Enable Social Connect Plugin ---> No errors (tried in home page and 2 others random pages)
2. Tried to enable JCH Optimize ---> No errors (tried in home page and 2 others random pages)
3. Disabled JCH Optimize to reverse to your original configuration
Nothing More
Maybe the error is not site wide. I know I first saw it on this page,
https://sim-x.net/index.php/simsearch/custom-pwc-search-subscriber
and the account I sent you has access to that page, so you can use it to login via the front end. If you do, you need to set some filters to see how I saw the issue,
Ok, now it is all clear, in this page you have 2 jQuery instances (see screenshot from source code of this page).
Bad jquery seems to be loaded from module "mod_aridatatables" without using Joomla APIs, try to check if this module have a option to disable it.