Thank you both very much for your quick answer! Assigning php 7.1 using cpanel's MultiPHP results in 'Redirect Status Code: 500' on my site when running a php file. e.g. https://stephank.heliohost.org/test.php Interestingly, assigning php 7.0 works like a charm. Tested multiple times, results can be reproduced. Not too bad for me, still testing basic things and thus not restricted to 7.1 but could it be a configuration/setup issue? Best regards, Stephan