Deckey on "Internal server error"

Hello there,

Maybe I have found the problem...but I still have need your help.

I've seen my HTML and it looks like this:

<div class="menu-header"><ul id="menu-menu-1" class="menu"><li id="menu-item-20" class="menu-item menu-item-type-post_type menu-item-object-page"><a>#!about/"><span class="title">About</span><span class="description"></span></a>
<li id="menu-item-21" class="menu-item menu-item-type-post_type menu-item-object-page"><a>#!clients/"><span class="title">Clients</span><span class="description"></span></a>
<li id="menu-item-24" class="menu-item menu-item-type-post_type menu-item-object-page"><a>#!portfolio/"><span class="title">Portfolio</span><span class="description"></span></a>
<li id="menu-item-23" class="menu-item menu-item-type-post_type menu-item-object-page"><a href="#!download-folio/"><span class="title">Download Folio</span><span class="description"></span></a>
<li id="menu-item-41" class="menu-item menu-item-type-post_type menu-item-object-page"><a>#!backstage/"><span class="title">Backstage</span><span class="description"></span></a>
<li id="menu-item-22" class="menu-item menu-item-type-post_type menu-item-object-page"><a>#!contact/"><span class="title">Contact</span><span class="description">
</div>

But with Chrome I can only see this, without possibility to change.
I cannot enter in my Admin panel, for the Error. There's another way to change this words and delete these simbols "#" and "!" ?
I think the problem is there!

Thank you