Fatal error: Uncaught Error: Class 'Psy\TabCompletion\Matcher\AbstractMatcher' not found in /home/changeco/public_html/vendor/psy/psysh/src/TabCompletion/Matcher/ConstantsMatcher.php:21 Stack trace: #0 {main} thrown in /home/changeco/public_html/vendor/psy/psysh/src/TabCompletion/Matcher/ConstantsMatcher.php on line 21