'Exception when loading revId (-1): Unable to load key for revid -1' when trying to view files in svn

2015-01-23 07:12:04,424 WARN  [qtp1698988475-1078 ] fisheye SvnRevInfoDAO-load - Exception when loading revId (-1): Unable to load key for revid -1
com.cenqua.fisheye.rep.DbException: Unable to load key for revid -1
        at com.cenqua.fisheye.rep.impl.CommonRevInfoDAO.load(CommonRevInfoDAO.java:212)
        at com.cenqua.fisheye.svn.db.SvnRevInfoDAO.load(SvnRevInfoDAO.java:596)
        at com.atlassian.fisheye.svn.Svn2Cache.getFileRevision(Svn2Cache.java:329)
        at com.atlassian.fisheye.svn.Svn2Cache.getFileRevision(Svn2Cache.java:324)
        at com.atlassian.fisheye.svn.Svn2Cache.getFileRevisionAtTag(Svn2Cache.java:157)
        at com.cenqua.fisheye.cache.BaseRevisionCache.findFileRevision(BaseRevisionCache.java:218)
        at com.atlassian.fisheye.svn.Svn2Cache.findFileRevision(Svn2Cache.java:119)
        at com.cenqua.fisheye.web.ViewFileAction.handleFileRequest(ViewFileAction.java:187)
        at com.cenqua.fisheye.web.ViewFileAction.handleRequest(ViewFileAction.java:145)