**SDK you're using (please complete the following information):** - Version 2.32 (But the erronious line is present in the latest version as well) **Describe the bug** In PHP 8.1, it issues a warning when implicitly converting the $seconds variable to int in line 80 in StringUtil.php. **To Reproduce** Execute any code that enters the convertStringToDateTime function and enters the else statement **Additional Context** This can be fixed by changing line 80 in String Util.php from: $datetime->setTimestamp($seconds); To: $datetime->setTimestamp((int)$seconds);