Issue Importing Transactions from Excel

I've downloaded the template, which shows the date format is 2020-07-12. I provide that date format in my Excel import, and all my imported transactions show the same default date of january 1 1970. This is my first working Akaunting install, so I'm not sure if I missed something during the setup process or not.

Same issue I have here can someone help with the solution to this

The import doesn't work for me as well. But it doesn't start in the first place. It says always "undefined index [tablename]"
you can insert the tablename inside the excel sheet. It doesn't matter how I call it.

Don't know what to do