WhatsApp now requires Android 5.0 (Lollipop) or newer to function.
Android 4.4 has not received security patches from Google since August 2023. Using communication apps on unsupported OS versions exposes your data to significant vulnerabilities. Hardware Limitations: whatsapp apkpure android 4.4.4
A: Android 4.4.4 uses /data and internal storage differently. Clear cache of old apps, then retry. WhatsApp now requires Android 5