1. In case, Pjax Blog Bundle is activated.
Please put a check on “Stop Loading jQuery Asynchronously” in theme options.
You can find it at Appearance > Customize > Pjax Blog Settings > Other > “Stop Loading jQuery Asynchronously”.
2. Deactivate non-recommended plugins.
If your page doesn’t work out after the implementation, please deactivate all plugins but recommended plugin by Pjax Blog and confirm if it’s fixed or not.