Installing joomla 4 and received error upon completing install

Hosting Support
1

Website URL

https://totheleftoftheweb.free.nf/installation/index.php

Error Message

Error
An error has occurred while processing your request.

0 Warning: Undefined array key 1

2

Remembered on previous versions of joomla one had to delete the ‘installation’ folder to see the site. Did that and refreshed page but just sent me to the following page:

https://errors.infinityfree.net/errors/404/

3

Went back to my account manager and clicked on the ‘view web site’ button and it popped up the completed install. Sorry! Should have done all this before wasting anybody’s time looking at this submission.