Good day!
If you are getting complexity to find the exact version of VQMODfor OpenCart 3.x and unable to install in your server then you can use this simple OCMOD based extension. It will help you to install the vqmod in your OpenCart 3.x and will do some custom changes that required to make it working with OpenCart 3.x.

Easy Installation by OCMOD.
1. Download this module and go to your admin
2. Go to extension installer
3. Upload the .zip file you have gotten from download
4. Go to Extension - > Modification
5. Clear and refresh your cache
6. After install this module you have to visit installation path of your website: www.yourdomain.com/vqmod/install

Done!!!!