If you are facing issue "Xin Invoice 3.0 has encountered a problem and needs to close. We are sorry for the inconvenience." for Xin Invoice v3.
Please download the latest patch file at http://www.xincube.com/PatchDownload/XinInvoice_3.0_Patch_3.4.3.4.zip and follow the instruction in Readme.txt. If you still have problem, please contact us by email mysupport@xincube.com