Apple added stricter access to many of its services including the Photos app, in iOS 14, which can lead to access issues.
Please close out Slatable. Go to phone Settings > Slatable > Photos and tap None.
Restart your phone.
Open Slatable and try to import or save to Photos. You'll see a pop up that either asks for access to Photos, at which point choose "All Photos”, or follow the prompt to go into the Settings app to turn on access to "All Photos".
If you’re still having problems please contact us.