Dropbox crash on getting revisions

Caused by: com.dropbox.core.ServerException
	at com.dropbox.core.DbxRequestUtil.unexpectedStatus(DbxRequestUtil.java:344) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.dropbox.core.v2.DbxRawClientV2$1.execute(DbxRawClientV2.java:115) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.dropbox.core.v2.DbxRawClientV2.executeRetriable(DbxRawClientV2.java:284) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.dropbox.core.v2.DbxRawClientV2.rpcStyle(DbxRawClientV2.java:102) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.dropbox.core.v2.files.DbxUserFilesRequests.listRevisions(DbxUserFilesRequests.java:1658) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.dropbox.core.v2.files.ListRevisionsBuilder.start(ListRevisionsBuilder.java:83) ~[dropbox-core-sdk-3.0.5.jar:?]
	at com.qnext.bo.ffs.dropbox.DropboxClientV2.doGetListRevision(DropboxClientV2.java:422) ~[dropboxprovider.jar:?]

Hi, i updated dropbox api to 3.0.5 and sometimes i get that error with files that are uploaded before my upgrade, but the problem is that i get that error very rare and not with all files. Any idea ?