Fatal error: Uncaught BadMethodCallException: Infinite loop detected.

Questions
1

SS4.1

Simply adding: use SilverStripe\Forms\OptionsetField; to my page results in the error:

Fatal error: Uncaught BadMethodCallException: Infinite loop detected. Config could not be bootstrapped. in /var/www/html/pvdr/vendor/silverstripe/config/src/Collections/CachedConfigCollection.php on line 133

Am I missing something?

2

No idea what I did to fix it, but this is magically working now.