I have removed the "Upgrades Plugin", because after observing for more than 3 months, my site is only suitable for using "Ad Sharing Plugin".
But after that, I can not set "Max Upload File Space" on Site Admin > option. Two months ago I set 39 MB. When I changed to 49 MB, but on user blogs still 39 MB. I changed to 59 MB, but on user blogs still 39 MB.
I removed following files:
paypal.php - goes in / <-- root directory
upgrades.php - goes in /wp-admin
0-upgrades-hook.php - goes in /wp-content/mu-plugins
upgrades-framework.php - goes in /wp-content/mu-plugins
On database I removed:
I also removed "supporters plugin" with all files and related database
Currently I use following plugins:
Add to Any: Share/Bookmark/Email Button
All in One SEO Pack
Google XML Sitemaps
WordPress Database Backup
Please help me to set "Max Upload File Space" on Site Admin > option again.