[Bug] import Notion exported zip file failed

### Bug Description

When I import Notion exported zip file, Appflowy service send me an email, it said failed.
The taskID is : 3ddde445-37c8-4075-8a8b-cb0c3a113037

Please help explain what happened and how do I work around this.

### How to Reproduce

1. Export Notion content as markdown & csv.
2. download the zip file data
3. Open Appflowy, and import the zip file

### Expected Behavior

Import success

### Operating System

macOS

### AppFlowy Version(s)

0.12.1

### Screenshots

_No response_

### Additional Context

_No response_