Help for Aimeos

Hello,

PHP errör after updating to V17.2.0:
Core: Error handler (FE): PHP Warning: Illegal string offset 'header' in /---/---/---/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php line 3727
Core: Error handler (FE): PHP Warning: Illegal string offset 'replace' in /---/---/---/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php line 3729
Core: Error handler (FE): PHP Warning: Illegal string offset 'httpResponseCode' in /---/---/---/typo3_src-7.6.15/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php line 3730

Stock and Count behaviour not working --> 500: Internal Error if you click the defer links:
<script type="text/javascript" defer="defer" src="EN/products-services/counts/f/1/Urunler//?type=191351524"></script>
<script type="text/javascript" defer="defer" src="EN/products-services/stock/?type=191351524&ai%5Bs_prodcode%5D%5B0%5D=AC02025BL&ai%5Bs_prodcode%5D%5B1%5D=demo-bundle-article&ai%5Bs_prodcode%5D%5B2%5D=demo-selection-article"></script>

TYPO3 - 7.6.15
Aimeos - 17.2.0
PHP - 7.0.14

The first error should already be fixed with this commit:
https://github.com/aimeos/aimeos-typo3/ ... ed51b85498

We can't verify the second issue. Is there any log entry in the Apache error.log, the madmin_log table, the TYPO3 log or the log in typo3temp/logs/ ?