500 Internal error on login page after upgrade

Hi - I upgraded from 1.4 to 2.1 - no errors during the upgrade. When I want to log back in I get the Error 500 internal server error.

Can’t log in

Checked my error logs in my files found this error

[Mon Sep 12 09:10:52 2016] [error] [client 41.246.90.21] File does not exist: /usr/www/users/clghyjcxpz/favicon.ico, referer: http://mysite.co.za/mautic/s/login.



New to mautic please help

Hi - I upgraded from 1.4 to 2.1 - no errors during the upgrade. When I want to log back in I get the Error 500 internal server error.
Can’t log in
Checked my error logs in my files found this error
[Mon Sep 12 09:10:52 2016] [error] [client 41.246.90.21] File does not exist: /usr/www/users/clghyjcxpz/favicon.ico, referer: http://mysite.co.za/mautic/s/login.

New to mautic please help

Hi @dellabella ,
just run a test update with a clone of my production site. Login screen also showed Error 500 just below the user and password field. I switched PHP version from 5.6.25 to 7.0.10 and the error was gone.