Fatal error: Uncaught Error: Interface 'Prophecy\Promise\PromiseInterface' not found in /home/diligence/public_html/sigma-power/vendor/phpspec/prophecy/src/Prophecy/Promise/ReturnPromise.php:22
Stack trace:
#0 {main}
thrown in /home/diligence/public_html/sigma-power/vendor/phpspec/prophecy/src/Prophecy/Promise/ReturnPromise.php on line 22