Online Store can not be synchronized due to error:
Synchronization failed with error: Error while transmission of the config.ini body. Attribute with ID 'xxxxx' has an empty name for '' language!
The reason is the bug with id #PBA-79967 ("Cannot sync online store").
The bug is fixed since OSA 7.2. To sycnhronize the store on earlier product versions add the name for the attribute System > Settings > Attribute >
<name> and try to sync the store again.