Error messages users can act on

Rewrite these error messages for end users of a {app_type}. Each rewrite must say what happened, why (if known), and what to do next, in under 20 words, with no blame and no technical jargon.

{errors}

Example run: app_type = photo-sharing app, errors = ERR_UPLOAD_413, Network request failed, Invalid credentials, Quota exceeded

1. ERR_UPLOAD_413 → "This photo is too large to upload. Try a smaller file or lower the resolution."
2. Network request failed → "We couldn't reach the server. Check your connection and try again."
3. Invalid credentials → "That email and password don't match. Try again or reset your password."
4. Quota exceeded → "You've used all your storage. Delete some photos or upgrade your plan to keep uploading."