Identify which storage is full
Settings > Usage shows cloud library consumption. Your device or browser can also run out of local storage. Deleting browser data does not reduce the size of your cloud library.
Before clearing local data
Check for active, pending or interrupted recordings. Follow recording recovery and verify that each needed recording plays from the library.
Browser site data includes more than a cache. It can contain recording chunks, sign-in state and preferences. Clearing it can make an unfinished recording unrecoverable.
Free cloud storage
Save any files you need, then delete unneeded recordings. Check Settings > Usage again. Deletion affects shared links and can affect associated content.
Free device storage
Remove unrelated files or applications first. If ScreenApp still reports a local storage problem after all recordings are safely uploaded, contact support for instructions appropriate to your browser or app. Do not use a blanket reset as a recording-recovery step.