Stats dashboard date stuck after trying to upgrade

[Tanda]

Hiya

 

I tried to upgrade to the latest version (still using 1.5.6.1) but as the layout was all over the place (I made some changes ages ago when first installed) I decided to flip back to the old version until I have the time to fix the changes in layout in the new version as I will have to re-learn how I did it!

 

I now have an error in the stats dashboard which means I cant save the "To" date after I change it, it just keeps reverting back to the same date 2016-07-17 which I think is the same date as the backup retrieval was done. 

 

Does anyone know how I can fix this?

 

many thanks 

 

p.s. I will need a simple step by step answer as I am not a programmer sorry