Code 335545108. Details: Invalid crypt key

Hi, I can’t open database on my MSHPortable installed on an external HD. Error Code 335545108. Details: Invalid crypt key.
I Tried every procedure you explained in other discussions, but nothing worked.
Please help
Here some details.

Product Name: MailStore Home
Product Version: 12.0.3.14426
App Build Date: 2019-06-24
App Copyright: Copyright (c) 2005-2019 MailStore Software GmbH
App Description:
App Dir: F:\MailStore Home\Application
App File Name: F:\MailStore Home\Application\MailStoreHome.exe
App Title: MailStore
Operating System: Windows 10 Enterprise x64
OS Bitness: x64
Process Bitness: x86

Why are you still using version 12.0.3.14426? There have been NINE updates/patches since, all with multiple fixes. Lucky it works at all with Microsoft additional tweaks to operating system since 2019.
Latest version 22.1