With Admin block->Miscellaneous >experimental>split restore enabled, the following error comes up when trying to restore an item:

Notice: Trying to get property of non-object in E:\Website Files\moodle\blocks\sharing_cart\shared\SharingCart_Restore.php on line 268

exception 'SharingCart_ModuleException' with message 'Insertion failure' in E:\Website Files\moodle\blocks\sharing_cart\shared\SharingCart_Restore.php:280 Stack trace: #0 E:\Website Files\moodle\blocks\sharing_cart\shared\SharingCart_Restore.php(227): SharingCart_Restore->restoreSection() #1 E:\Website Files\moodle\blocks\sharing_cart\shared\SharingCart_Restore.php(119): SharingCart_Restore->parseXml() #2 E:\Website Files\moodle\blocks\sharing_cart\restore.php(43): SharingCart_Restore->execute() #3