getting exception on "acces edx-platform-test-subset #107049: lms-acceptance all completed" jenkins

gistfile1.py

Traceback (most recent call last):
   File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 109, in get_response
     response = callback(request, *callback_args, **callback_kwargs)
   File "/home/jenkins/edx-venv/local/lib/python2.7/site-packages/django/views/decorators/csrf.py", line 77, in wrapped_view
     return view_func(*args, **kwargs)
   File "/home/jenkins/workspace/edx-platform-test-subset/lms/djangoapps/courseware/module_render.py", line 788, in xqueue_callback
     with modulestore().bulk_operations(course_id):
   File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
     return self.gen.next()
     File "/home/jenkins/workspace/edx-platform-test-subset/lms/djangoapps/ccx/modulestore.py", line 297, in bulk_operations
     with self._modulestore.bulk_operations(course_id, emit_signals=emit_signals):
   File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
     return self.gen.next()
   File "/home/jenkins/workspace/edx-platform-test-subset/common/lib/xmodule/xmodule/modulestore/mixed.py", line 927, in bulk_operations
     store = self._get_modulestore_for_courselike(course_id)
   File "/home/jenkins/workspace/edx-platform-test-subset/common/lib/xmodule/xmodule/modulestore/mixed.py", line 194, in _get_modulestore_for_courselike
     if has_locator(store):
   File "/home/jenkins/workspace/edx-platform-test-subset/common/lib/xmodule/xmodule/modulestore/mixed.py", line 192, in <lambda>
     has_locator = lambda store: store.has_course(locator)
   File "/home/jenkins/workspace/edx-platform-test-subset/common/lib/xmodule/xmodule/modulestore/mongo/base.py", line 1053, in has_course
     assert isinstance(course_key, CourseKey)
 AssertionError
 ERROR:util.models:String decompression failed. There may be corrupted data in the database: Incorrect padding
 ERROR:root:Uncaught exception from <class 'django.core.handlers.wsgi.WSGIHandler'>