ner.batch-train memory error

I got the following error, hope this helps to understand the problem… i am going to reduce the beam-width e batch-size

python3 -m prodigy ner.batch-train citizenship /home/damiano/blank_model --output /home/damiano/after_citizenship --dropout 0.2 --n-iter 100 --batch-size 8 --beam-width 8

Loaded model /home/damiano/blank_model
Using 20% of accept/reject examples (3172) for evaluation
Using 100% of remaining examples (23010) for training
Dropout: 0.2  Batch size: 8  Iterations: 100  


BEFORE     0.039     
Correct    90
Incorrect  2241
Entities   25268     
Unknown    25178     

         
#          LOSS       RIGHT      WRONG      ENTS       SKIP       ACCURACY  
01         1172.850   2146       185        15527      0          0.921         
02         470.228    2226       105        11765      0          0.955         
03         499.363    2296       35         8709       0          0.985                                                                                                                                     
04         520.938    2250       81         10971      0          0.965                                                                                                                                     
05         561.103    2244       87         6994       0          0.963                                                                                                                                     
06         563.869    2300       31         6790       0          0.987                                                                                                                                     
07         537.077    2299       32         9406       0          0.986                                                                                                                                     
08         338.692    2306       25         7027       0          0.989                                                                                                                                     
09         594.263    2299       32         7235       0          0.986                                                                                                                                     
10         398.136    2286       45         8009       0          0.981                                                                                                                                     
11         631.404    2299       32         8527       0          0.986                                                                                                                                     
12         674.743    2309       22         16163      0          0.991                                                                                                                                     
13         454.832    2296       35         23171      0          0.985                                                                                                                                     
14         514.246    2295       36         11051      0          0.985                                                                                                                                     
15         596.353    2302       29         10663      0          0.988                                                                                                                                     
Traceback (most recent call last):                                                                                                                                                                          
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.5/dist-packages/prodigy/__main__.py", line 254, in <module>
    controller = recipe(*args, use_plac=True)
  File "cython_src/prodigy/core.pyx", line 152, in prodigy.core.recipe.recipe_decorator.recipe_proxy
  File "/home/damiano/.local/lib/python3.5/site-packages/plac_core.py", line 328, in call
    cmd, result = parser.consume(arglist)
  File "/home/damiano/.local/lib/python3.5/site-packages/plac_core.py", line 207, in consume
    return cmd, self.func(*(args + varargs + extraopts), **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/prodigy/recipes/ner.py", line 428, in batch_train
    model_to_bytes = model.to_bytes()
  File "cython_src/prodigy/models/ner.pyx", line 401, in prodigy.models.ner.EntityRecognizer.to_bytes
  File "cython_src/prodigy/models/ner.pyx", line 402, in prodigy.models.ner.EntityRecognizer.to_bytes
  File "/usr/local/lib/python3.5/dist-packages/spacy/language.py", line 675, in to_bytes
    return util.to_bytes(serializers, exclude)
  File "/usr/local/lib/python3.5/dist-packages/spacy/util.py", line 485, in to_bytes
    serialized[key] = getter()
  File "/usr/local/lib/python3.5/dist-packages/spacy/language.py", line 665, in <lambda>
    ('vocab', lambda: self.vocab.to_bytes()),
  File "vocab.pyx", line 402, in spacy.vocab.Vocab.to_bytes
  File "/usr/local/lib/python3.5/dist-packages/spacy/util.py", line 485, in to_bytes
    serialized[key] = getter()
  File "vocab.pyx", line 395, in spacy.vocab.Vocab.to_bytes.deserialize_vectors
  File "vectors.pyx", line 409, in spacy.vectors.Vectors.to_bytes
  File "/usr/local/lib/python3.5/dist-packages/spacy/util.py", line 485, in to_bytes
    serialized[key] = getter()
  File "vectors.pyx", line 404, in spacy.vectors.Vectors.to_bytes.serialize_weights
  File "/home/damiano/.local/lib/python3.5/site-packages/msgpack_numpy.py", line 171, in packb
    return Packer(**kwargs).pack(o)
  File "msgpack/_packer.pyx", line 284, in msgpack._packer.Packer.pack
  File "msgpack/_packer.pyx", line 290, in msgpack._packer.Packer.pack
  File "msgpack/_packer.pyx", line 287, in msgpack._packer.Packer.pack
  File "msgpack/_packer.pyx", line 234, in msgpack._packer.Packer._pack
MemoryError

Hey! Did you check this: Memory Error?