Fatal error: Uncaught Error: Class "Matrix\Operators\Operator" not found in /home/apolo/public_html/sgdpr/vendor/markbaker/matrix/classes/src/Operators/DirectSum.php:8
Stack trace:
#0 {main}
thrown in /home/apolo/public_html/sgdpr/vendor/markbaker/matrix/classes/src/Operators/DirectSum.php on line 8