Why has my site cached date gone backwards

[ClaireH-184886]

hi, something very unusual is happening with my site. a few months ago before we updated our site, i mean upgraded it, we would be indexed every day, now it seems we are getting indexed every four days, and now today i have noticed something very strange, this morning when i checked my site www.in2town.co.uk it was cached 31st july, but this afternoon it is showing 25th july.

can anyone please let me know why this has happened

many thanks

[JMacSupply]

Very strange!!

Is it back to normal now?