us_helpers.php undefined varible

[firestorm]

try a different local server like mamp for windows etc, try on different php versions, 5.6 and 7 are good, download a fresh copy user spice and use a different program to unzip. the reason i suggest these things is basicly this issue hasnt been raised by anyone else so most likey is isolated at your end, mamp has its issues and unzippers do aswell so changing these thing may fix or may not but least will be on the check list you know . maybe contact your web host if you use one and see if theres something server side that could be conflicting