Sort by [anything] is not working

[jrgrafisk]

Hi

For my site www.nettotruck.dk i can't seem to use the Sort By-feature. 

I noticed this when I tried to set up the Layered Block filter, then I tried to disable (and uninstall + delete files) the module, and clear the cache, but to no avail.

I can't even choose to show the products in a list, instead of a grid. 

Then I thought to test it on my mobile - and here we have another problem... The Menu (top horizontal menu) dosen't work.

Please give any suggestions you might have. I have a deadline in a week

[jrgrafisk]

Might have something to do with this error - but I'm not smart enough to know what to change...
 

http://imgur.com/DFXRHQ7

[jrgrafisk]

ANY IDEAS?

My hair is starting to fall out now 

[razaro]

Yeah I think you right all that is caused by JavaScript errors.

 

Menu is there just hidden, waiting for JS to show it.

 

Have you done any changes in theme js files ?

[musicmaster]

My impression is that your jQuery doesn't load. However, the error that causes this is missing.

 

My suggestion is to go to Advanced->performance in your backoffice. Make sure that among the CCC options moving javascript to the end of the file is disabled (this is a notorious troublemaker). If that doesn't work you can disable all overrides and all non-Prestashop modules to see whether the trouble comes from there.

[jrgrafisk]

This issue was triggered by LiveChat (third party) module. 
I disabled it, and switched to Tawk.to chat.