Fresh install of SuiteCRM 8.3.1 which was a pain to install, because my server had PHP 8.1 and 8.2. So the service provider made a new PHP available for me in a sub-domain. Then they installed all the missing packages and finally after a week of waiting I got SuiteCRM installed. Now I cannot get pass the login screen. The installatron username&password does not work or admin&admin. Maybe this is not the CRM for me…
That 500 error means PHP is crashing when handling your request.
Ensure that you are within the matrix:
and check your php_errors.log for FATALs
Hi and thx for the reply. I thought I was in the matrix, if the Suite installs with Installatron 
The support people installed a new php for me, when the suite was not installing at all. I think I have all the plugins that the documentation says I need. How could I figure out what is still wrong? I might have access to at least some of the apache logs, but it is a hosted system, so not all of the logs
Open the login page in your browser(ready to make a login attempt)
Go to your SuiteCRM root folder
Open the file .env
There will be a line like
APP_ENV=prod
Change it to
APP_ENV=qa
Save the file
And try to login now in the browser inspector in the network tab see what is the response of the login request
This will give you more information about the error
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Do you have php-mysql installed?