PROBLEM WITH TEMPLATE, CHECK YOUR FTL (reader/pageflip/swipe.ftl):
freemarker.core._TemplateModelException: Java method "vnp.PublishedIssue.getTitle()" threw an exception when invoked on vnp.PublishedIssue object "vnp.PublishedIssue[ id=692001 ]"; see cause exception in the Java stack trace.

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${pullout.getTitle().getAbbreviazione()}  [in template "reader/pageflip/_pullouts.ftl" at line 9, column 35]
	- Reached through: #include "/reader/pageflip/_pullouts...  [in template "reader/pageflip/_footer.ftl" in macro "footer" at line 193, column 5]
	- Reached through: @footer  [in template "templates/frontend.ftl" in macro "frontend_layout" at line 127, column 9]
	- Reached through: @frontend_layout viewArea="vc_reader_...  [in template "reader/pageflip/swipe.ftl" at line 10, column 1]
----