Hi Elvin,
thanks for your reply. I deactivated all plugins, nothing changed. So I searched on google again and found the following remark. If in the config file,
define( ‘DISALLOW_FILE_EDIT’, true )
is defined, the sub menu plugin editor will not be displayed. So I deactivated this line (//) and it is OK now!
Do you have an idea, how this command comes into config-fil? Because all other website I care for, I have no problem with this point ….
Many thanks
Franz