My main PS4 world of 6 years now crashes when played

I can only play this world for a short while before problems appear.

My PS4 world 'Rixworld25-11' is copied to 'Throwaway'. I always copy world before playing a new update. I have been playing Rixworld25-11 since 2019 with few errors, most fixed quickly.
My world is 1G in size. Saves normally take under 1 minute.
pic 1throwaway...

After update, when I play, it is only for 20 minutes or so, if I just exit and save, after about 15 minutes, the world size is 1.8G.
pic2 doubled

If I play longer then the an error pops up...
pic 3crash--disconnected due to world corruption

If I play double world for a bit, I get a crash again...
Pic 5newerror -- out of space
pic 6details

I have plenty of storage space, 410 gigs.
pic 7storage

This started in 1.21.130 Update and still persists in 26.12.

I have gone though this several times. I uninstalled MC, cold booted PS4, reinstalled MC,
then cold booted again. I am wondering if my old world is now too old.

This does not happen with a newer world.

Thanks.