Thank you very much for the information, as it hasn't caused me any problems before now do you think it would be safe enough to leave it as is.You used the PP tool
Pangu didn't develop that themselves but 'borrowed' it from TaiG they day after TaiG came out.
Most likely it has the old TaiG untether integrated in the 'borrowed' jailbreak, triggering the update request.
But as it is a different setup TaiG won't install.
This can only cause problems, not in last place because the Pangu JB uses the old flawed TaiG untether
Highly recommend to restore and rejailbreak with Taig