i Wanna give an update to all,
I FINALLY solved this problem on my website: http://www.leopzionibinarie.it
I’ve simply disinstalled that damned plugin called wp TOTAL CACHE.
After that, i could update wordpress to 4.5.2 from backend and at the end of the process no php error shown!
Finally! 🙂 I’m really happy if i could help someone with that!
Hi, abhinawasai. i had the same problem upgrading to 4.5.1
Installing upgrade from ftp, wordpress gave me the same problem from wp back end.
I installed long time ago lazyloader but then i’ve removed from my plugin list so an expert told me that you can MAYBE fix the issue going.
First of all check if on ftp files if there is a folder regarding lazyloader and remove it.
Then check on database files if there are occurrences regarding lazyloader and remove them.
Remember to make a back up before that and don’t touch nothing in wpconfig.php and in wp-content folder.
Now i will try that for my website 🙂
