Thanks @redsand, you guys rock! I just want to point out that v1.9.9.8.5 doesn’t cause the error 500 in my case.
I’ll wait for the next version, cheers.
I can confirm that this happened to all my sites today as well with WP-Spam Shield on. I didn’t update the plugin. Once the plugin the disabled (rename) with FTP, sites are back online.
I think it’s just the plugin because another site on the same droplet without this plugin is fine. Hopefully, the plugin’s developers can find the cause soon.
Error 500
