2D Standard Draftsight not working

Hello,

 

Haven't used Draftsight in some time. Tried to open it and it would not, lots of error messages and a fatal error message at the end. Thought I could look for an update on the Draftsight home page. Saw the 2024 for windows and downloaded it, which in turn deleted my 2020 version and now look I'm in trial mode (3D) which I don't want. Have my serial number from the 2020 version and have made my yearly payment in Feb. How can I go back to my 2020 version and have it operational.

Thanks