Hey, everyone who encountered this error, try opening another project and check if the same thing happens there. If the problem disappears, it might be due to the large history of your chat. To solve the issue, try manually deleting most of the history. You can also try renaming the project or moving it. This will help you quickly clear the history.
Additionally, you can delete the history by navigating to this path:
Windows: %APPDATA%\Cursor\User\workspaceStorage
macOS: ~/Library/Application Support/Cursor/User/workspaceStorage
Linux: ~/.config/Cursor/User/workspaceStorage
If your history is important to you, you can try exporting it using this extension: