Getting error 500 while trying to install InvoicePlane

Good day

Please assist I am unable to install invoice plane because I am getting an error " This page isn’t working is currently unable to handle this request. HTTP ERROR 500. I have included a screenshot as well.


The upload didn’t work.
First try this out:
and this:

and this:

With an internal server error, the error should at least end up in the server log. Check there as well.
Most likely the solution is to comment out that first line in ipconfig.php (see the documentation link)