Is this one of the – it was working and now it isn’t – type of question 🙂 ? because if it is the answer really is ‘what has changed’? New WP plugin? Updated WP theme?

Yes it will be a script conflict – that seems certain. Can you give me a link to the forum page so I can see the source and console etc?

No it isnt.

It was not working on the page since installation.

What i fund out so far is that if i delete jquery.nav.js, the problem firebug shows lies in main.js,

if i just delete that one as well, the forum works.

Strangly the page itself works as well, but i cant see the footer on some pages.

Which will be not really acceptable for him.

Please help, i just payed for it;)

adress is www.em2016bwh.de/forum

P.s. i will but the js files back in, so you can see the errors.

Well I am afraid the problem does start with jquery.nav.js which is causing the first error and that is stopping other jQuery calls to function. It is worth noting that this error is showing up on ALL pages so it is fundamental and pretty important to get resolved.

I note you say this leads to other errors but tracing these things is always a one step at a time process. I have not encountered jquery.nav.js before but if you look at the source code you will find:

* jQuery One Page Nav Plugin
* http://github.com/davist11/jQuery-One-Page-Nav
*
* Copyright (c) 2010 Trevor Davis (http://trevordavis.net)

so maybe you will find Mr Davis more helpful than the theme authors although it is they who are bundling it with their WP theme and most likely they who are creating the error.

So no further aid from your side?

If you can think of anything we could do to help then please do make suggestions. But we don’t know the code or the theme or what is causing the error. In this case it isn’t even a conflict with forum code as it is happening in all pages.

The theme is loading the Bootstrap library as well which is a totally unsupported lib as far as WordPress goes and can often cause other damage to jQuery UI components although that looks not the case here. And as you already noted – underneath the first error there may be others waiting to be revealed.

The problem starts with the WP theme I am afraid – possibly the way they are loading components or initialising them. And of theme authors don’t offer any support to fix errors then my advice would be to change themes although I do realise that can be difficult.

Not at all, in fact we will always do all we can to get you up and running.. With something like this though we can’t make the decision for you whether you want to keep using the theme or not.

For example if a WP plugin or theme is loading it’s own version of jquery, possibly an outdated version or a library that’s not supported by WP – it will potentially cause conflicts with plugins that adhere to WP standards such as Simple:Press.

we are still here… but we cannot really fix your wp theme… is it up to date and current with wp?  the js file you reference is dated 2010…  jquery has changed tremendously since then so its possible its out of date…  

and since that file is throwing a js error on every page and not just the forum, seems to indicate a general issue and not related to simple press…  simple press uses more jquery than a typical wp theme or plugin, so you may not have had issues caused by the errors until now…

do you know what that js does on your site?  is it even used?

Well thanks  alot for your help.

No aktually i cant see a bit js does on that site.

I think i will just dleete these files and have a look what the client says,

although it is really not my intention of delivering a site with errors,

but they insist of using this theme.

I´lll let you know if i find a solution.

Depending on what that js actually does, you might be able to just disable it on the wp page the forum is on…

How could i do that?

I am not sure what Steve had in mind here. But some of the better themes/plugins do offer options to disable components on specific pages. If yours does not do that then you would be into some coding but I gather you would rather not do that.

Steve may have other ideas and he will almost certainly be around later in the day…

Just responding to earlier comment about user removing the js… Was just suggesting if it was vital to pages other than forum page, it could just be removed on the singular forum page…

This would be done by checking the page id or title and not loading vice just removing the js loading…