boomaga close after open the pdf file

[HaiToh]

i am trying to print but when i open the file in boomaga the programe aborts
here the immaterial message
boomaga: /build/boomaga-Chulvh/boomaga-3.0.0/src/boomaga/kernel/pdfprocessor.cpp:135: int PdfProcessor::walkPageTree(int, const PDF::Object&, const PDF::Dict&): Assertion `page.type() == "Pages" || page.type() == "Page"' failed.
Aborted
the system is linux mint
thank you