A. 1. Clear App Cache: Go to Settings > General > iPhone Storage, find One Converter, and select 'Offload App'. This will clear the cache without deleting your data. Reopen the app and try downloading again. 2. Update the App: Check for updates in the App Store and install any available updates for One Converter.

B. 3. Restart Your Device: Sometimes, a simple restart can resolve app bugs. Hold the power button and slide to power off, then turn it back on.