With bootstrap_package 7.0.x the "No frame" option of content elements vanishes and thus a "div" tag is added around the JSON generated by the catalog count and catalog stock plugins. This renders the output invalid.
There have been some discussions about rendering the output directly (https://github.com/aimeos/aimeos-typo3/issues/21) but no pull request has been opened yet.
Questions around the TYPO3 integration and plugins as well as Flow and NeosCMS
Forum rules: Always add your TYPO3/Flow, Aimeos and PHP version as well as your environment (Linux/Mac/Win)