Because YouTube frequently changes its API, older versions of the app often break. The community at r/LegacyJailbreak typically recommends these fixes:
Be cautious of downloads promising "extra quality" or "premium" features from unknown sites, as these are often used as clickbait for malware or surveys. Stick to trusted community sources like Reddit's r/LegacyJailbreak . youtube+ipa+for+ios+1034+extra+quality
In short:
If you install an old IPA and it fails to load, it is usually because the app’s version string is too old for Google’s servers. You can fix this by the version number. Because YouTube frequently changes its API, older versions