By the way,
If I want to change a theme I get the following error:
Fatal error: Call to undefined function current_action() in /home/tomvamv85/domains/……/public_html/wp-includes/theme.php on line 758
I’m having the same error.
I certainly hope that somebody knows how to fix this.
It is possible for me to replace the plugin.php with an older version, but then I seemed to be unable to activate new plugins.
Well. I’ve read it now about thirty times but I really can’t see what I’m doing wrong.
I’ve put this in the extra field: Activiteit:,voorjaarscursus;najaarscursus;clinic
And the label Activiteit is set as checkbox-multiple.