Modal windows don't work

[Siguana]

  I am editing the coding for having my VirtueMart as I want, but I have broken something...

  Now, the modal windows don't work.

  For example, if I click into the image of a product, it doesn't open in a modal window, and it opens in a new page.  Or if I click into the "Ask a question about this product" link, it doesn't work (it only works if I right-click the link and I open it in a new tab).

  I have edited many things, and I don't want to start again from zero.  How can I fix it?

[Jörgen]

No Vm version, No Joomla Version ? Custom template ? Lots of changes ?

The only way I see is to revert the changes until You come back to a working version. Who knows what You have changed ?
Deactivate the changed override files in Your template one by one until it works again. Maybe just the CSS files ?

regards

Jörgen @ Kreativ Fotografi

[jenkinhill]

It is a good idea to make a note of each change you make when editing & developing template overrides to make it easier to work back (I assume you are editing overrides and not original VM files).

[Studio 42]

Check the browser console (F12 on PC chrome or firefox), you have certainly a javascript error.

[Siguana]

Check the browser console (F12 on PC chrome or firefox), you have certainly a javascript error.

  You are right!  It is a Javascript error!  I have check the coding and it is a problem with a third party extension.  I have contacted with the developer and I am waiting for the answer.  Thanks a lot!