The Server Loader gets AccessDeniedException

Exception in thread "main" java.io.UncheckedIOException: java.nio.file.AccessDeniedException: /opt/infinispan/server/lib/custom-libraries/lost+found
    at java.base/java.nio.file.FileTreeIterator.fetchNextIfNeeded(FileTreeIterator.java:87)
    at java.base/java.nio.file.FileTreeIterator.hasNext(FileTreeIterator.java:103)
    at java.base/java.util.Iterator.forEachRemaining(Iterator.java:132)
    at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497)
    at org.infinispan.server.loader.Loader.classLoaderFromPath(Loader.java:116)
    at org.infinispan.server.loader.Loader.run(Loader.java:95)
    at org.infinispan.server.loader.Loader.main(Loader.java:48)
Caused by: java.nio.file.AccessDeniedException: /opt/infinispan/server/lib/custom-libraries/lost+found
    at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:90)
    at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
    at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
    at java.base/sun.nio.fs.UnixFileSystemProvider.newDirectoryStream(UnixFileSystemProvider.java:432)
    at java.base/java.nio.file.Files.newDirectoryStream(Files.java:472)
    at java.base/java.nio.file.FileTreeWalker.visit(FileTreeWalker.java:300)
    at java.base/java.nio.file.FileTreeWalker.next(FileTreeWalker.java:373)
    at java.base/java.nio.file.FileTreeIterator.fetchNextIfNeeded(FileTreeIterator.java:83)
    ... 12 more