I have Used the Above Posted Medicine in the version 11.5.6 and then never used the patch. just updated the new version over patched version and it worked.
I just Installed the New Version without uninstalling the previous patched version. I have disabled the Internet for this app in the firewall settings. Its working for me.
https://ibb.co/b7DM0MF
https://anonymz.com/?https://desktop.vyaparapp.in/updateElectron22/VyaparApp-12.1.0.exe
anonymz.com/?https://desktop.vyaparapp.in/updateElectron22/VyaparApp-11.0.0.exe
it is not working with 18.6.3
https://desktop.vyaparapp.in/updateElectron22/VyaparApp-10.17.1.exe
Updated over old patched Version. No need to Patch again.
(New Invoice Themes)