[Plugin: Multi-column Tag Map] Doesn't work for me

if i deactivate your plugin the theme comes back an looks like this

Picture with plugin deactivated

If you don’t have the plugin activated, which by looking at this page: https://www.noobtech.at/alle-themen-nach-alphabet/ you don’t, there’s no way for me to see what the issue might be.

the thing is: no code is generated… no head…nothing. plugin is temporarly activated. but not for long