Sometimes errors occur and it is necessary to reinstall your FL Studio Groove app:
1. Go to the Windows store (click/tap on the 'Store' icon under Windows tile-view).
2. Click on Account (top of the screen)
3. Click on My apps
4. Select All apps from the drop-down menu on the left (likely showing 'Apps not installed on this PC')
5. Right-click FL Studio Groove
6. Click Install (at the bottom of the screen)
NOTE: If trouble persists, try uninstalling FL Studio Groove and repeating the above.
Image-Line Support Team