Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/paymsrpn/more.paymoott.com/core_invapp/vendor/simplesoftwareio/simple-qrcode/tests/GeneratorTest.php:16 Stack trace: #0 {main} thrown in /home/paymsrpn/more.paymoott.com/core_invapp/vendor/simplesoftwareio/simple-qrcode/tests/GeneratorTest.php on line 16