This error will occur if the PM-Security application files cannot be found.
Open File Explorer and navigate to the HSoft\Apps folder.
Check if the VclHsXX.dll file exists (or VclHsSqlXX.dll for SQL users), where XX represents the particular year of the module you're trying to access.
For example, if the error occurs in HandiTax 2025, check the HSoft\Apps folder for the file VclHs25.dll file. For SQL, it will be VclHsSql25.dll.
If the files are missing, raise a new case with support online for assistance.