PdfLibCore.PdfiumException: PDFium Error: No error. when opening a pdf document

[POFerro]

Hi :),

When I try to open a specific pdf document I get an error:

PdfLibCore.PdfiumException: PDFium Error: No error.
at PdfLibCore.Types.NativeWrapper`1..ctor(T handle)
at PdfLibCore.PdfDocument..ctor(FPDF_DOCUMENT doc)
at PdfLibCore.PdfDocument..ctor(String fileName, String password)

Have any idea what it might be? It only happens with certain pdf files. If you want I can send you an example of a failing pdf in private.
The pdf has an AcroForm I don't know if it might be a problem.

Thanks in advance and best regards.
POFerro