error code for no reason

I am bedeviled by xerte giving me an error code. (it's always the session time out code) whenever I insert the most vanilla code statements. Here is a simple example:
<p>
<audio id ="clip1" src = " www.essentialhebrew.com/thekey/allaudio/error_response.mp3 ">
</audio>
<a onclick = "document.getElementById('clip1') .play()">wrong</a>
</p>
There are some rare instances when xerte does not throw an error (especially if I use a simple jquery statement and not javascript) . Can you think of why this is happening? I know that the simple code tests that I have been trying in Xerte run fine in a browser.
Thanks for your help

I was able to use the xerte site of a friend and I found that all my problems with code throwing a time out error disappeared. So I assume that either there is something with my installation and I would have to delete my install and redo it. [with some advice on how to save the database and my existing xot's] or perhaps there is something wrong on the hosting service itself?
thanks again.