Based on the number of PHP warnings I would say that you need to take a good look at your php.ini.
You will want to resolve all of those before we proceed with troubleshooting this.
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'intl' (tried: C:\Program Files (x86)\PHP\v7.3\ext\intl (The specified module could not be found.), C:\Program Files (x86)\PHP\v7.3\ext\php_intl.dll (The specified module could not be found.)) in Unknown on line 0
This one says that the module (php_intl.dll) cannot be found (maybe permissions) or does not exist.
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'php_sqlsrv_73_ts_x64.dll' (tried: C:\Program Files (x86)\PHP\v7.3\ext\php_sqlsrv_73_ts_x64.dll (The specified module could not be found.), C:\Program Files (x86)\PHP\v7.3\ext\php_php_sqlsrv_73_ts_x64.dll.dll (The specified module could not be found.)) in Unknown on line 0
This one says the same thing for php_sqlsrv_73_ts_x64.dll (which as a side note also does not exist on my server and I have never heard of it).
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'php_wincache.dll' (tried: C:\Program Files (x86)\PHP\v7.3\ext\php_wincache.dll (%1 is not a valid Win32 application.), C:\Program Files (x86)\PHP\v7.3\ext\php_php_wincache.dll.dll (The specified module could not be found.)) in Unknown on line 0
This one says the same thing for php_wincache.dll (which as a side note also does not exist on my server).
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'curl' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'gd' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'gettext' already loaded in Unknown on line 0
These say that you are trying to load the same module more than once in your php.ini. find the duplicates and comment them out.
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: PHP Startup: Unable to load dynamic library 'php_mysql.dll' (tried: C:\Program Files (x86)\PHP\v7.3\ext\php_mysql.dll (The specified module could not be found.), C:\Program Files (x86)\PHP\v7.3\ext\php_php_mysql.dll.dll (The specified module could not be found.)) in Unknown on line 0
This one says that the module (php_mysql.dll) cannot be found (maybe permissions) or does not exist. Since this was deprecated in 5.5 it was removed in 7. (it might not have been removed until 7.1 I'm unsure exactly when it was removed but it is not in at least 7.2+). Comment out the line in your php.ini.
MuadDib007 [19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'mysqli' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'mbstring' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'openssl' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'soap' already loaded in Unknown on line 0
[19-Dec-2019 08:55:58 UTC] PHP Warning: Module 'xmlrpc' already loaded in Unknown on line 0
These say that you are trying to load the same module more than once in your php.ini. find the duplicates and comment them out.
MuadDib007 [19-Dec-2019 09:55:58 Europe/Amsterdam] PHP Deprecated: Directive 'track_errors' is deprecated in Unknown on line 0
The track errors directive was deprecated in PHP 7.2.
In php.ini change
track_errors=On
to
track_errors=Off