Hi,
I am new to Galaxy, so am probably doing something silly.
My jobs do not finish and sometimes do not start. Here is the error message:

Details
user   
username    watterber
quota_percent    3
total_disk_usage    10295907343
nice_total_disk_usage    9.6 GB
email    atterber@unlv.nevada.edu
is_admin    false
tags_used   
model_class    User
id    e2b7da49063484ac
source    HDACollection(d686c5fd139f68f1,190)
xhr   
readyState    4
responseText    {"err_msg": "Uncaught exception in exposed API method:", "err_code": 0}
responseJSON   
err_msg    Uncaught exception in exposed API method:
err_code    0
status    500
statusText    Internal Server Error
responseHeaders   
Server    nginx/1.4.7
Date    Thu, 22 May 2014 16:23:06 GMT
Content-Type    application/json
Transfer-Encoding    chunked
Connection    keep-alive
Cache-Control    max-age=0,no-cache,no-store
options   
data   
parse    true
emulateHTTP    false
emulateJSON    false

Any information would be awesome.
Thank you,

Wally