please be upfront if this is not something you can help with or at least give me a hint how to solve
manually i try to install some plugin and get this error. any idea what to fix or do?
Warning: Invalid argument supplied for foreach() in /home/httpd/vhosts/bevlogenverf.nl/httpdocs/webshop/wp-admin/includes/class-wp-upgrader.php on line 558
The package could not be installed. No valid plugins were found.
Plugin install failed.