Google updates its API. A “static” old APK without active patches will crash. You need an old version – e.g., re-patch v17.03.38 with the latest ReVanced patch set.
Old versions break over time. To stay “updated” while using an old mod: youtube pro apk download old version updated
This practice carries significant risks that the search query conveniently ignores. The first is security. Unofficial APKs are not vetted by Google Play Protect. They can contain malware, spyware, or cryptocurrency miners. The promise of "YouTube Pro" has been a popular vector for credential-stealing trojans. The second is account stability. Google’s terms of service explicitly forbid modified clients, and using one can lead to a temporary or permanent suspension of one’s Google account—a catastrophic loss given the integration of Gmail, Drive, and Photos. The third is ethical: by circumventing ads, the user deprives creators of revenue. While many argue that they would never pay for Premium anyway, thus representing no lost sale, the reality is that ad revenue remains the primary lifeline for small and medium-sized channels. Google updates its API