2020-03-31 15:04:41,424 DEBG 'runserver' stderr output:
[Tue Mar 31 15:04:41.423161 2020] [wsgi:error] [pid 150:tid 140352554579712] [remote 172.19.0.4:51074] ERROR:django.request:Internal Server Error: /api/v1/tasks/2/annotations/2_GT-Alignment-Framewise

2020-03-31 15:14:42,867 DEBG 'rqworker_default_1' stderr output:
15:14:42 default: cvat.apps.engine.annotation.dump_task_data('2', <SimpleLazyObject: <User: nick>>, '/home/django/data/tasks/2/artifacts/2_GT-Alignment-Framewise.nick.2020_03_31_15_14_42.xml', <AnnotationDumper: AnnotationDumper object (CVAT XML 1.1 for videos)>, 'http', 'localhost:8080') (nick@/api/v1/tasks/2/annotations/CVAT XML 1.1 for videos/2_GT-Alignment-Framewise)

2020-03-31 15:14:42,942 DEBG 'rqworker_default_1' stderr output:
15:14:42 FileNotFoundError: [Errno 2] No such file or directory: '/home/django/cvat/apps/annotation/cvat.py'
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/rq/worker.py", line 812, in perform_job
    rv = job.perform()
  File "/usr/local/lib/python3.5/dist-packages/rq/job.py", line 588, in perform
    self._result = self._execute()
  File "/usr/local/lib/python3.5/dist-packages/rq/job.py", line 594, in _execute
    return self.func(*self.args, **self.kwargs)
  File "/home/django/cvat/apps/engine/annotation.py", line 135, in dump_task_data
    annotation.dump(filename, dumper, scheme, host)
  File "/home/django/cvat/apps/engine/annotation.py", line 732, in dump
    source_code = open(os.path.join(settings.BASE_DIR, db_format.handler_file.name)).read()
FileNotFoundError: [Errno 2] No such file or directory: '/home/django/cvat/apps/annotation/cvat.py'
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/rq/worker.py", line 812, in perform_job
    rv = job.perform()
  File "/usr/local/lib/python3.5/dist-packages/rq/job.py", line 588, in perform
    self._result = self._execute()
  File "/usr/local/lib/python3.5/dist-packages/rq/job.py", line 594, in _execute
    return self.func(*self.args, **self.kwargs)
  File "/home/django/cvat/apps/engine/annotation.py", line 135, in dump_task_data
    annotation.dump(filename, dumper, scheme, host)
  File "/home/django/cvat/apps/engine/annotation.py", line 732, in dump
    source_code = open(os.path.join(settings.BASE_DIR, db_format.handler_file.name)).read()
FileNotFoundError: [Errno 2] No such file or directory: '/home/django/cvat/apps/annotation/cvat.py'

2020-03-31 15:14:45,899 DEBG 'runserver' stderr output:
[Tue Mar 31 15:14:45.899807 2020] [wsgi:error] [pid 150:tid 140352554579712] [remote 172.19.0.4:51096] [2020-03-31 15:14:45,899] ERROR django.request: Internal Server Error: /api/v1/tasks/2/annotations/2_GT-Alignment-Framewise

2020-03-31 15:14:45,900 DEBG 'runserver' stderr output:
[Tue Mar 31 15:14:45.899907 2020] [wsgi:error] [pid 150:tid 140352554579712] [remote 172.19.0.4:51096] ERROR:django.request:Internal Server Error: /api/v1/tasks/2/annotations/2_GT-Alignment-Framewise