Error in /manatee.ks/do_query

Script /manatee.ks/do_query
RuntimeError: FileAccessError (/disk/manatee/par_skcs_all_30_sk/word.lex.srt) in MapBinFile:mmap [Cannot allocate memory] Line 37     session.corpus1 = corpint.make_corpus(config.corpora[0])

Traceback (most recent call last):
  File "/usr/share/karrigell/core/k_script.py", line 145, in render
    self.run_script(ns)
  File "/usr/share/karrigell/modules/mod_ks.py", line 63, in run_script
    exec self.pythonCode() in ns
  File "<string>", line 37, in <module>
  File "/data/shared/par-sken/web/lib/manateelib/corpint.py", line 162, in make_corpus
    corpus = Corpus(fullpath)
  File "/data/shared/par-sken/web/lib/manateelib/corpint.py", line 21, in __init__
    self.size = self.manateecorpus.size()
  File "/data/shared/par-sken/web/lib/manateelib/manatee.py", line 325, in size
    def size(*args): return _manatee.Corpus_size(*args)
RuntimeError: FileAccessError (/disk/manatee/par_skcs_all_30_sk/word.lex.srt) in MapBinFile:mmap [Cannot allocate memory]