If you have installed, your system already has the 64-bit ACE drivers. However, if you are running a 32-bit application (like an old VB6 app or a 32-bit IIS Application Pool) and try to use the ACE driver, it will fail because it tries to load the 64-bit driver into a 32-bit process.
"Microsoft Access Database Engine 2016 Redistributable"
You may need to download Microsoft Jet OLE DB 4.0 if: download microsoft jet oledb 4.0
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Modify your database connection string to swap the provider. If you have installed, your system already has
The application is calling upon the Jet engine to read that file.
To fix the registration error, you must force your application to run in 32-bit mode. This link or copies made by others cannot be deleted
A quick web search might bring you to blog posts offering a file named AccessDatabaseEngine_X64.zip that claims to solve the Jet 4.0 problem. Be extremely careful with these sources.
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\folder\;Extended Properties="text;HDR=Yes;FMT=Delimited"; Best Practices for Legacy Drivers