Warning: Use of undefined constant REQUEST_URI – assumed ‘REQUEST_URI’ (this will throw an Error in a future version of PHP) in /home/xx/xx/wp-content/themes/generatepress/functions.php on line 73
It is probably too late to answer but I just had the exact problem and solved quickly. Just in case if anyone is looking for the solution this is how I handled:
Basically my functions.php line 73 was missing apostrophe (or whatever it is) on REQUEST_URI part. Don’t know what caused it but this is how I solved. Cheers!