Another message that may be seen will refer to the GUID being incorrect. This indicates a severe error in the file to the extent that it’s not even recognized as an AxCrypt file. In most cases this is because the file is simply not a file secured by AxCrypt.
AxCrypt has some features for recovery of damaged files, but there are some limitations. You must also be careful, and start by marking the original (damaged) file as read-only, and then make a copy of it – and always only work on the copy!
Please contact support for further instructions on how to proceed.
Your protection against data loss is regular backups. Please backup all your important files – secured as well as files without security. AxCrypt is not intended to provide any protection against data loss – only against disclosure and undetected manipulation.