STEMS ERROR - Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null

[jenia0jenia]

Hello! when recognizing I get this error

2023-11-08 13:40:59,012 INFO [n0001792#4]       StepMonitoring.java:98   | STEMS
2023-11-08 13:41:00,564 INFO [n0001792#4]           BeamLinker.java:1703 | Not linking shorter BeamHookInter#3214{(0.475/0.793) BEAM_HOOK}
2023-11-08 13:41:00,564 INFO [n0001792#4]           BeamLinker.java:1703 | Not linking shorter BeamInter#3216{(0.489/0.802) BEAM}
2023-11-08 13:41:00,575 INFO [n0001792#4]           BeamLinker.java:1703 | Not linking shorter BeamHookInter#3214{(0.475/0.793) BEAM_HOOK}
2023-11-08 13:41:00,576 INFO [n0001792#4]           BeamLinker.java:1703 | Not linking shorter BeamInter#3216{(0.489/0.802) BEAM}
2023-11-08 13:41:02,943 WARN [n0001792#4]            SheetStub.java:1374 | Error in performing [LOAD, BINARY, SCALE, GRID, HEADERS, STEM_SEEDS, BEAMS, LEDGERS, HEADS, STEMS, REDUCTION, CUE_BEAMS, TEXTS, MEASURES, CHORDS, CURVES, SYMBOLS, LINKS, RHYTHMS, PAGE] java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null
java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null
	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205)
	at org.audiveris.omr.sheet.SheetStub.doOneStep(SheetStub.java:570)
	at org.audiveris.omr.sheet.SheetStub.reachStep(SheetStub.java:1358)
	at org.audiveris.omr.sheet.Book.reachBookStep(Book.java:2023)
	at org.audiveris.omr.sheet.Book.transcribe(Book.java:2577)
	at org.audiveris.omr.sheet.Book.export(Book.java:634)
	at org.audiveris.omr.CLI$ProcessingTask.processBook(CLI.java:887)
	at org.audiveris.omr.CLI$CliTask.call(CLI.java:490)
	at org.audiveris.omr.Main.runBatchTasks(Main.java:363)
	at org.audiveris.omr.Main.main(Main.java:252)
	at Audiveris.main(Audiveris.java:50)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null
	at org.audiveris.omr.step.AbstractSystemStep.doitPerSystem(AbstractSystemStep.java:186)
	at org.audiveris.omr.step.AbstractSystemStep.doit(AbstractSystemStep.java:125)
	at org.audiveris.omr.step.OmrStep.doit(OmrStep.java:138)
	at org.audiveris.omr.sheet.SheetStub.lambda$doOneStep$2(SheetStub.java:555)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:842)
Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "java.util.TreeMap.get(Object)" is null
	at org.audiveris.omr.sheet.stem.StemBuilder.getLength(StemBuilder.java:606)
	at org.audiveris.omr.sheet.stem.StemBuilder.headHasLength(StemBuilder.java:762)
	at org.audiveris.omr.sheet.stem.HeadLinker$SLinker$CLinker.canLink(HeadLinker.java:926)
	at org.audiveris.omr.sheet.stem.HeadLinker.linkSides(HeadLinker.java:332)
	at org.audiveris.omr.sheet.stem.HeadLinker.linkSides(HeadLinker.java:378)
	at org.audiveris.omr.sheet.stem.HeadLinker.linkSides(HeadLinker.java:378)
	at org.audiveris.omr.sheet.stem.StemsRetriever.linkStems(StemsRetriever.java:682)
	at org.audiveris.omr.sheet.stem.StemsRetriever.process(StemsRetriever.java:705)
	at org.audiveris.omr.sheet.stem.StemsStep.doSystem(StemsStep.java:105)
	at org.audiveris.omr.sheet.stem.StemsStep.doSystem(StemsStep.java:39)
	at org.audiveris.omr.step.AbstractSystemStep.lambda$doitPerSystem$0(AbstractSystemStep.java:159)
	at org.audiveris.omr.step.AbstractSystemStep.doitPerSystem(AbstractSystemStep.java:179)
	... 7 common frames omitted

full log in file n0001792-20231108T1337.log and notes n0001792.pdf