Trying out Kirby3 for the first time. Unzipped into a subdomain and used AddHandler to force use of php 7.1. Getting this message at startup.
Whoops\Exception\ErrorException thrown with message "PHP Startup: SourceGuardian: Unable to initialize module
Module compiled with module API=20100525
PHP compiled with module API=20160303
These options need to match
#0 Whoops\Exception\ErrorException in Unknown:0
No idea what is wrong.