fwrite(): Argument #2 ($data) must be of type string, null given

[baharsah]

in FCPATH/vendor/laminas/laminas-diactoros/src/Stream.php on line 234.
1 FCPATH/vendor/laminas/laminas-diactoros/src/Stream.php(234): fwrite()
2 FCPATH/vendor/sdpmlab/codeigniter4-roadrunner/src/ResponseBridge.php(142): Laminas\Diactoros\Stream->write()
3 FCPATH/vendor/sdpmlab/codeigniter4-roadrunner/src/ResponseBridge.php(25): SDPMlab\Ci4Roadrunner\ResponseBridge->createBody()
4 FCPATH/psr-worker.php(122): SDPMlab\Ci4Roadrunner\ResponseBridge->__construct()