Capacitor throw NPE when trying to ouput coverage stats

[ERROR] Error while iterating loci:
java.lang.RuntimeException: java.lang.NullPointerException
	at barna.flux.capacitor.reconstruction.FluxCapacitor.exploreFinish(FluxCapacitor.java:2525)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.explore(FluxCapacitor.java:2733)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.getProfile(FluxCapacitor.java:2200)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:1744)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:76)
	at barna.commons.launcher.Flux.main(Flux.java:197)
Caused by: java.lang.NullPointerException
	at barna.flux.capacitor.reconstruction.FluxCapacitor.exploreFinish(FluxCapacitor.java:2427)
	... 5 more
java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NullPointerException
	at barna.flux.capacitor.reconstruction.FluxCapacitor.explore(FluxCapacitor.java:2737)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.getProfile(FluxCapacitor.java:2200)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:1744)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:76)
	at barna.commons.launcher.Flux.main(Flux.java:197)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
	at barna.flux.capacitor.reconstruction.FluxCapacitor.exploreFinish(FluxCapacitor.java:2525)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.explore(FluxCapacitor.java:2733)
	... 4 more
Caused by: java.lang.NullPointerException
	at barna.flux.capacitor.reconstruction.FluxCapacitor.exploreFinish(FluxCapacitor.java:2427)
	... 5 more
[FATAL] Error occured during scanning
	java.lang.RuntimeException: java.lang.NullPointerException

[SOLVE] Deconvolving reads of overlapping transcripts.
	decomposing  [WARN] skipped line chr1	HAVANA	gene	11869	14412	.	+	.	transcript_id "ENSG00000223972.4"; havana_gene "OTTHUMG00000000961.2"; level "2"; transcript_name "DDX11L1"; gene_name "DDX11L1"; transcript_status "KNOWN"; gene_id "ENSG00000223972.4"; gene_type "pseudogene"; transcript_type "pseudogene"; gene_status "KNOWN";
 OK (00:01:53)

	reconstruction finished .. took 113 sec.

	15000 mappings read from file
	0 mapping in pairs map to annotation
	0 mappings without tx evidence
	0 mappings with wrong orientation

	183086 transcripts, 0 detected



[ERROR] null
java.lang.NullPointerException
	at barna.io.FileHelper.move(FileHelper.java:658)
	at barna.io.FileHelper.move(FileHelper.java:637)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.fileFinish(FluxCapacitor.java:1543)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:1794)
	at barna.flux.capacitor.reconstruction.FluxCapacitor.call(FluxCapacitor.java:76)
	at barna.commons.launcher.Flux.main(Flux.java:197)