Error while running "compile-graph.sh"

Hey,

when I run "compile-graph.sh" I run into the following error:

ngram-count -wbdiscount -order 4 -text db/extra.txt -lm data/extra.lm.gz
+ ngram -order 4 -lm db/en-230k-0.5.lm.gz -mix-lm data/extra.lm.gz -lambda 0.95 -write-lm data/en-mix.lm.gz
db/en-230k-0.5.lm.gz: line 186020193: ngram line has 4 fields (6 expected)
format error in lm file db/en-230k-0.5.lm.gz
+ ngram -order 4 -lm data/en-mix.lm.gz -prune 3e-8 -write-lm data/en-mixp.lm.gz
data/en-mix.lm.gz: No such file or directory
+ ngram -lm data/en-mixp.lm.gz -write-lm data/en-mix-small.lm.gz
data/en-mixp.lm.gz: No such file or directory
+ utils/prepare_lang.sh data/dict '[unk]' data/lang_local data/lang
utils/prepare_lang.sh data/dict [unk] data/lang_local data/lang

I'm using the kaldi docker image. Also I tried it with an empty "extra.txt" and "extra.dic" and still run into the same error.
The rest of the script runs fine until it requires the en-mix.lm again.

Any suggestion on how I can fix this?