Running Signature with Recovery Id tests:<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function Test\printHeader() in /home/immunoglow/public_html/immunoglow/vendor/starkbank/ecdsa/tests/testSignatureWithRecoveryId.php:10
Stack trace:
#0 {main}
  thrown in <b>/home/immunoglow/public_html/immunoglow/vendor/starkbank/ecdsa/tests/testSignatureWithRecoveryId.php</b> on line <b>10</b><br />