WordPress Speed Up Service | WordPress Website Maintenance Packages Can I back to 4.9 ?, by salamzaban Hi Thanks for your attention. Last night I received an email that but after that ” Your site has become updated to 4.9.1 I have these errors collection: -Error establishing a database connection. -Userlinks redirects to homepage. -Can’t access site and log-in I have these errors randomly. for some minutes it works fine and after that it goes down. My site is network WordPress and I tried many solutions. – Changing the .htaccess – disabling plugin and theme folders But no result. How can I fix it? Can I back to 4.9 ? Can I back to 4.9 ?