Hello, I have repeatedly gotten the following error message when attempting to use both the mapping and pileup functions in Galaxy. I am using files that I have previously used successfully with these functions, and cannot fix it. Thank you. ~Emily Beck user username emilybeck quota_percent 19 total_disk_usage 52086193970 nice_total_disk_usage 48.5 GB email emily-beck@uiowa.edu is_admin false tags_used model_class User id 03f0554e2314759e source HDACollection(f313d1d65c4ee57e,451) 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 Wed, 16 Jul 2014 15:19:52 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 Emily Beck PhD Candidate Llopart Lab 469 Biology Building Iowa City, IA 52242 Lab: (319)335-3430